{"title":"TOMEI studs, bolts and washers","description":"\u003cp\u003eHead studs, main studs, cam cap studs, main stud ladders and reinforced washers from TOMEI for RB, SR, 4G63, EJ, VQ and 4A-G engines.\u003c\/p\u003e\u003cp\u003eCheck the chassis and engine code in each product title before you order, or send us your car's details and we'll confirm fitment. TOMEI UK is run by TORQEN Ltd, an independent authorised TOMEI distributor, not a branch of TOMEI Japan.\u003c\/p\u003e","products":[{"product_id":"tomei-head-studs-set-rb26dett","title":"Tomei HEAD STUDS SET For NISSAN RB26 193003","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2629 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eIn order to secure the performance required of head gaskets, such as cooling, rigidity, and sealing, it is necessary to strengthen combination of a cylinder head and a cylinder block. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eRB26DETT\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193003\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt×14\u003cbr data-mce-fragment=\"1\"\u003e・Nut×14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n* Dummy head cylinder boring is highly recommended to get the best result for the stud bolt installation.\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e* Bolt SNCM439(WPC finish)\u003cbr data-mce-fragment=\"1\"\u003e* Nut SCM435\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTensile strength 220,000psi (155kgf\/m㎡）\u003cbr data-mce-fragment=\"1\"\u003eHardness HRC40～50\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM12 P1.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475522863,"sku":"193003","price":415.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p129_headstud.jpg?v=1677178371"},{"product_id":"tomei-head-studs-set-4g63","title":"Tomei HEAD STUDS SET For EVO 4-9 4G63 193114","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2679 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eIn order to secure the performance required of head gaskets, such as cooling, rigidity, and sealing, it is necessary to strengthen combination of a cylinder head and a cylinder block. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e4G63\u003cbr data-mce-fragment=\"1\"\u003eEvo.4-9\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193114\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt×10\u003cbr data-mce-fragment=\"1\"\u003e・Nut×10\u003cbr data-mce-fragment=\"1\"\u003e・Washer×10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n* Dummy head cylinder boring is highly recommended to get the best result for the stud bolt installation.\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e* Bolt SNCM439(WPC finish)\u003cbr data-mce-fragment=\"1\"\u003e* Nut SCM435\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTensile strength 220,000psi (155kgf\/m㎡）\u003cbr data-mce-fragment=\"1\"\u003eHardness HRC40～50\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT：M11 P1.25\/P1.5\u003cbr data-mce-fragment=\"1\"\u003eNUT：M11 P1.5\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475555631,"sku":"193114","price":447.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/files\/193114_5dcb8311-15df-4485-a4b5-93e7204c093d.jpg?v=1685952389"},{"product_id":"tomei-head-studs-ej20-ej25","title":"Tomei HEAD STUDS For SUBARU EJ 193112","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2700 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eIn order to secure the performance required of head gaskets, such as cooling, rigidity, and sealing, it is necessary to strengthen combination of a cylinder head and a cylinder block. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eEJ20#\u003cbr data-mce-fragment=\"1\"\u003eEJ25#\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193112\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt×12\u003cbr data-mce-fragment=\"1\"\u003e・Nut×12\u003cbr data-mce-fragment=\"1\"\u003e・Washer×12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n* Dummy head cylinder boring is highly recommended to get the best result for the stud bolt installation.\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e* Chromemoly 8740\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM10 P1.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475621167,"sku":"193112","price":402.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/nri143_HeadStuds_ej20_25.jpg?v=1677178254"},{"product_id":"tomei-head-studs-set-4ag","title":"Tomei HEAD STUDS SET For TOYOTA 4AG 193071","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2707 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eIn order to secure the performance required of head gaskets, such as cooling, rigidity, and sealing, it is necessary to strengthen combination of a cylinder head and a cylinder block. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e4AG\u003cbr data-mce-fragment=\"1\"\u003e(* for 16V Only)\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193071\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt×10\u003cbr data-mce-fragment=\"1\"\u003e・Nut×10\u003cbr data-mce-fragment=\"1\"\u003e・Washer×10\u003cbr data-mce-fragment=\"1\"\u003e・Assembly Nut×4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n* Dummy head cylinder boring is highly recommended to get the best result for the stud bolt installation.\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e* Chromemoly 8740\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM10 P1.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475653935,"sku":"193071","price":253.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p129_4g63_head_stud.jpg?v=1677178190"},{"product_id":"tomei-main-studs-set-rb26dett-rb25det-rb20det","title":"Tomei MAIN STUDS SET For NISSAN RB26 RB25 RB20 193013","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2712 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"photo-text\" data-mce-fragment=\"1\"\u003eCrank bearing cap needed to secure strict metal clearance of the crankshaft by fixing bearing firmly at the time of high rotation and high load, enduring the force from bend or torsion vibration. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eRB26\u003cbr data-mce-fragment=\"1\"\u003eRB25\u003cbr data-mce-fragment=\"1\"\u003eRB20\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193013\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt L×3\u003cbr data-mce-fragment=\"1\"\u003e・Bolt S×11\u003cbr data-mce-fragment=\"1\"\u003e・Nut×14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n* Dummy head cylinder boring is highly recommended to get the best result for the stud bolt installation.\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e* Bolt SNCM439(WPC finish)\u003cbr data-mce-fragment=\"1\"\u003e* Nut SCM435\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTensile strength 220,000psi (155kgf\/m㎡）\u003cbr data-mce-fragment=\"1\"\u003eHardness HRC40～50\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM10 P1.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475686703,"sku":"193013","price":376.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p129_minatud.jpg?v=1677178129"},{"product_id":"tomei-main-studs-set-sr20det","title":"Tomei MAIN STUDS SET For NISSAN SR 193019","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2720 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eCrank bearing cap needed to secure strict metal clearance of the crankshaft by fixing bearing firmly at the time of high rotation and high load, enduring the force from bend or torsion vibration. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eSR20DE(T)\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193019\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt×10\u003cbr data-mce-fragment=\"1\"\u003e・Nut×10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n* Dummy head cylinder boring is highly recommended to get the best result for the stud bolt installation.\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e* Bolt SNCM439(WPC finish)\u003cbr data-mce-fragment=\"1\"\u003e* Nut SCM435\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTensile strength 220,000psi (155kgf\/m㎡）\u003cbr data-mce-fragment=\"1\"\u003eHardness HRC40～50\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM11 P1.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475719471,"sku":"193019","price":408.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p129_4g63_main_stud_1.jpg?v=1677178074"},{"product_id":"tomei-main-studs-set-4g63-evo4","title":"Tomei MAIN STUDS SET For EVO 4-9 4G63 193022","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2723 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eCrank bearing cap needed to secure strict metal clearance of the crankshaft by fixing bearing firmly at the time of high rotation and high load, enduring the force from bend or torsion vibration. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e4G63 (Evo.4-)\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193022\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt×10\u003cbr data-mce-fragment=\"1\"\u003e・Nut×10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n* Dummy head cylinder boring is highly recommended to get the best result for the stud bolt installation.\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e* Bolt SNCM439(WPC finish)\u003cbr data-mce-fragment=\"1\"\u003e* Nut SCM435\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTensile strength 220,000psi (155kgf\/m㎡）\u003cbr data-mce-fragment=\"1\"\u003eHardness HRC40～50\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM10 P1.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475752239,"sku":"193022","price":382.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p129_4g63_main_stud.jpg?v=1677178013"},{"product_id":"tomei-main-bolts-ej20-ej25","title":"Tomei MAIN BOLTS For SUBARU EJ 193113","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2736 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eThe EJ engine cylinder block and crankshaft design is not really suited for high power use so the main bolts are important to maintain strength in the block. The stress that the block endures is susceptible to deformation of the crank main journals which can increase friction and ultimately bearing failure. The TOMEI main bolts are designed to suit high power applications to prevent the block from warping and to ensure rigidity.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eEJ20#\u003cbr data-mce-fragment=\"1\"\u003eEJ25#\u003cbr data-mce-fragment=\"1\"\u003e※Main Bolts\u003cbr data-mce-fragment=\"1\"\u003e※BP\/BL Compatible\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193113\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・M10 Bolt (Washer Seals) x6\u003cbr data-mce-fragment=\"1\"\u003e・M10 Bolt Long x2\u003cbr data-mce-fragment=\"1\"\u003e・M8 Bolt Long x1\u003cbr data-mce-fragment=\"1\"\u003e・ M10 Washer x4\u003cbr data-mce-fragment=\"1\"\u003e・M10 Bolt Short x2\u003cbr data-mce-fragment=\"1\"\u003e・M8 Bolt Short x6\u003cbr data-mce-fragment=\"1\"\u003e・M8 Washers x7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n* Dummy head cylinder boring is highly recommended to get the best result for the bolt installation.\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e* Chromemoly 8740\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM10 P1.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHOW THE EJ BLOCK OPENS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable class=\"noboder\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd width=\"280\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro_ej.jpg\" alt=\"\" width=\"280\" height=\"187\" class=\"aligncenter size-full wp-image-2741\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro_ej.jpg\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSince the EJ cylinder block lies flat and splits into 2 halves the crankshafts movement phenomenon puts extra burden on the studs with the 180° phase reciprocating motion of the pistons. When the gap opens this prevents the Main Bearings from maintaining the correct clearance which will lead to an engine blow. The TOMEI studs will ensure that the blocks are held together even during extreme conditions.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475817775,"sku":"193113","price":622.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/nri143_MainBolts_ej20_25.jpg?v=1677177941"},{"product_id":"tomei-main-stud-ladder-set-4ag","title":"Tomei MAIN STUD LADDER SET For TOYOTA 4AG 193075","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2745 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eA common weak point found when tuning the 4AG engine is from the crank cab bolts being insufficient to cope with the high stress loads from extreme engine speeds. The weak crank cab bolts can result in the stock crank cab bolts breaking or excessive loads on the bearings causing rapid irregular wearing. In the worse case scenario this can lead to engine failure. The TOMEI ladders also aid further in increased block rigidness to help support the crank cab bolts and maintaining the reliability of the bearings for longer engine life and increased durability for constant high end performance use. In the 4AG engine which assures high revolution conversion, it is the item which cannot be missed. When aiming to use the 4AG for high end engine speeds this is an absolute must to include in your engine to cope with 10,000+ RPM\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eITEM\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"3\" data-mce-fragment=\"1\"\u003e4AG\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eMAIN STUDS \u0026amp; LADDER SET\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193075\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Ladder×5\u003cbr data-mce-fragment=\"1\"\u003e・Bolt×10\u003cbr data-mce-fragment=\"1\"\u003e・Nut×10\u003cbr data-mce-fragment=\"1\"\u003e・Washer×10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eMAIN STUDS\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193072\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt×10\u003cbr data-mce-fragment=\"1\"\u003e・Nut×10\u003cbr data-mce-fragment=\"1\"\u003e・Washer×10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCRANK CAP LADDERS\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193074\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Ladder×5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMAIN STUDS\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCRANK CAP LADDERS\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eChromemoly 8740\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eChromemoly 8740\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLadder FC Material(Special heat treated)\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM10 P1.25\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475850543,"sku":"193075","price":337.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p130_4ag_stud_and_ladder_set_2.jpg?v=1677176389"},{"product_id":"tomei-main-studs-set-4ag","title":"Tomei MAIN STUDS SET For TOYOTA 4AG 193072","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2745 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eA common weak point found when tuning the 4AG engine is from the crank cab bolts being insufficient to cope with the high stress loads from extreme engine speeds. The weak crank cab bolts can result in the stock crank cab bolts breaking or excessive loads on the bearings causing rapid irregular wearing. In the worse case scenario this can lead to engine failure. The TOMEI ladders also aid further in increased block rigidness to help support the crank cab bolts and maintaining the reliability of the bearings for longer engine life and increased durability for constant high end performance use. In the 4AG engine which assures high revolution conversion, it is the item which cannot be missed. When aiming to use the 4AG for high end engine speeds this is an absolute must to include in your engine to cope with 10,000+ RPM\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eITEM\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"3\" data-mce-fragment=\"1\"\u003e4AG\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eMAIN STUDS \u0026amp; LADDER SET\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193075\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Ladder×5\u003cbr data-mce-fragment=\"1\"\u003e・Bolt×10\u003cbr data-mce-fragment=\"1\"\u003e・Nut×10\u003cbr data-mce-fragment=\"1\"\u003e・Washer×10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eMAIN STUDS\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193072\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt×10\u003cbr data-mce-fragment=\"1\"\u003e・Nut×10\u003cbr data-mce-fragment=\"1\"\u003e・Washer×10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCRANK CAP LADDERS\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193074\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Ladder×5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMAIN STUDS\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCRANK CAP LADDERS\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eChromemoly 8740\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eChromemoly 8740\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLadder FC Material(Special heat treated)\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM10 P1.25\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489475883311,"sku":"193072","price":156.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p130_4ag_stud_and_ladder_set_1.jpg?v=1677176311"},{"product_id":"tomei-cam-cap-studs-set-rb26dett","title":"Tomei CAM CAP STUDS SET For NISSAN RB26 193016","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2756 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eWhen using the high lift profile camshafts for high RPM use the stress loads on the cam caps will be extreme and much higher than what the engineers had originally designed the stock studs for. These bolts are designed and made from Chrome Moly Alloy which will allow you to use with cam lift profiles of up to 12.0mm and for up to 10,000 RPM safely. When using the high lift camshafts engine builders of the past had to depend on the stock bolts. Running the risk of the incorrect strength of the studs, nuts screw holes were always a worry. But now with these Tomei studs the extra strength will allow for pushing your engines performance to new levels for bigger power gains.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eRB26DETT\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193016\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・Bolt×28\u003cbr data-mce-fragment=\"1\"\u003e・Nut×28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolt\/Mut SCM435\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLadder FC Material(Special heat treated)\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eM6 P1.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr data-mce-fragment=\"1\"\u003e・Breakage of the cylinder from distortion.\u003cbr data-mce-fragment=\"1\"\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eCrank bearing cap bolt\u003cbr data-mce-fragment=\"1\"\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Noise by too much clearance of bearing.\u003cbr data-mce-fragment=\"1\"\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr data-mce-fragment=\"1\"\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e●\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489476079919,"sku":"193016","price":114.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p131_cam_cap_studs.jpg?v=1677176246"},{"product_id":"tomei-crank-cap-ladder-set-4ag","title":"Tomei CRANK CAP LADDER SET For TOYOTA 4AG 193074","description":"\u003cdiv id=\"main\"\u003e\n\u003carticle class=\"post-2745 post type-post status-publish format-standard hentry category-16\"\u003e\n\u003cdiv class=\"content-body en\"\u003e\n\u003cp class=\"description\"\u003eA common weak point found when tuning the 4AG engine is from the crank cab bolts being insufficient to cope with the high stress loads from extreme engine speeds. The weak crank cab bolts can result in the stock crank cab bolts breaking or excessive loads on the bearings causing rapid irregular wearing. In the worse case scenario this can lead to engine failure. The TOMEI ladders also aid further in increased block rigidness to help support the crank cab bolts and maintaining the reliability of the bearings for longer engine life and increased durability for constant high end performance use. In the 4AG engine which assures high revolution conversion, it is the item which cannot be missed. When aiming to use the 4AG for high end engine speeds this is an absolute must to include in your engine to cope with 10,000+ RPM\u003c\/p\u003e\n\u003ch3\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAPPLICATION\u003c\/th\u003e\n\u003cth\u003eITEM\u003c\/th\u003e\n\u003cth\u003eP\/N\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eCONTENTS\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e4AG\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eMAIN STUDS \u0026amp; LADDER SET\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e193075\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e・Ladder×5\u003cbr\u003e・Bolt×10\u003cbr\u003e・Nut×10\u003cbr\u003e・Washer×10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eMAIN STUDS\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e193072\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e・Bolt×10\u003cbr\u003e・Nut×10\u003cbr\u003e・Washer×10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eCRANK CAP LADDERS\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e193074\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e・Ladder×5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"en\"\u003eMAIN STUDS\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"en\"\u003eCRANK CAP LADDERS\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"en\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd\u003e\u003cspan class=\"en\"\u003eChromemoly 8740\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"en\"\u003eChromemoly 8740\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"en\"\u003eLadder FC Material(Special heat treated)\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd\u003eM10 P1.25\u003c\/td\u003e\n\u003ctd\u003e–\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cb\u003e●\u003cspan class=\"en\"\u003eBOLT STRETCH LIMITS\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cspan class=\"en\"\u003eBolts and screws in general will stretch when placed under stressful conditions. The stock bolts will tend not to return perfectly to its original shape once stretched due to the manufacturing methods used for the original purpose of the bolt design. Tuned engines will go through many procedures which require the bolts to be reused during every step. When having a dummy head installed and getting a bore and hone, when checking for bearing clearances and so on. So when the bolts are removed and torque up repeatedly bolt stretch management will then become difficult to manage the and retain the strict clearances required. The TOMEI Stud bolts are the best choice for high performance precision engines which require the fixed elastic range of the bolt set for repeated use and to maintain performance. The TOMEI Bolts will keep your engine together when needed most.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cdiv\u003e\u003cspan class=\"en\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg\" alt=\"\" width=\"827\" height=\"377\" class=\"aligncenter size-full wp-image-2647\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e.jpg 827w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-300x137.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro1_e-768x350.jpg 768w\" sizes=\"(max-width: 827px) 100vw, 827px\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cb\u003e●\u003cspan class=\"en\"\u003eROTATING SURFACE HEAT TREATMENT\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003cdiv\u003e\u003cspan class=\"en\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2655\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro2_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cspan class=\"en\"\u003eRotation processing is the method of Rotating Die and Work Hardening the raw core of the bolt is placed on the cradle between the two rotating die with pressure applied from both sides. The metallic crystals within the bolts are then deformed at a microscopic scale, and then interacted with one another to make up a strengthened bolt that carries increased yield strength. The chromoly steel of the Tomei strengthened bolt is first heat treated and rolled on the rotating die, increasing impact resistance, surface strength, and longevity. These standards add up for the highest quality product available.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e●\u003cspan class=\"en\"\u003eANGLE TORQUE BOLT TIGHTENING METHOD\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cspan class=\"en\"\u003eAn engine cannot be properly built without the use of the angle torque method when tightening certain bolts. It is necessary to utilize a special angle gauge when tightening strengthened studs and connecting rod bolts. Applying torque to the bolts without this specialized tool can lead to immediate or eventual catastrophic failure of the engine assembly.\u003c\/span\u003e\u003cbr\u003e\n\u003cdiv class=\"table-box\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003cth\u003e\u003cspan class=\"en\"\u003eLack of bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan class=\"en\"\u003eExcessive bolting force\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"en\"\u003eHead bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd\u003e\u003cspan class=\"en\"\u003e・Leaking gas, water, oil caused by lack of the sealing pressure\u003cbr\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"en\"\u003e・ Leaking gas, water, and oil from excessive bolting or failure of sealing pressure.\u003cbr\u003e・Breakage of the cylinder from distortion.\u003cbr\u003e・Poor piston clearance caused by cylinder distortion.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan class=\"en\"\u003eCrank bearing cap bolt\u003cbr\u003eConrod bearing cap bolt\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd\u003e\u003cspan class=\"en\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr\u003e・Noise by too much clearance of bearing.\u003cbr\u003e・The further fall of bolting force, loosening, and engine breakage.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"en\"\u003e・Worn out of the engine by bad bearing assembly.\u003cbr\u003e・Worn out of the engine by poor clearance of the bearing.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e●\u003cspan class=\"en\"\u003eTORQUE NUMBERS CANNOT BE TRUSTED\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003cspan class=\"en\"\u003eEngine components that require precision accuracy when tightening its bolts cannot be trusted with basic torque figures. This is due to 80~90% of the friction is lost on the surface of the thread and the seat when tightened, with the correct figure being at 10~20% of the torque applied. The surface of the thread and the seat depends on the roughness of each surface and the lubrication state, so that no matter how accurate the torque specs are specified it cannot be trusted.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cdiv\u003e\n\u003cspan class=\"en\"\u003e【Change of Axis force due to the difference of friction of the washer】\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"en\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg\" alt=\"\" width=\"1100\" height=\"250\" class=\"aligncenter size-full wp-image-2665\" srcset=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e.jpg 1100w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-300x68.jpg 300w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-768x175.jpg 768w, https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/intro3_e-1024x233.jpg 1024w\" sizes=\"(max-width: 1100px) 100vw, 1100px\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e\u003cspan class=\"en\"\u003ePlease use an Angle Guage as well when torquing up these TOMEI Reinforced Bolts.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter\u003e\u003cnav id=\"footer-nav\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489476145455,"sku":"193074","price":188.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p130_4ag_stud_and_ladder_set.jpg?v=1677176093"},{"product_id":"tomei-fly-wheel-bolt-set-4ag","title":"Tomei FLY WHEEL BOLT SET For TOYOTA 4AG 193070","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2766 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eThe vibrations from the crankshaft that occurs with the sudden engagement of the clutch at high RPM are transmitted to the flywheel. The flywheel bolts cannot withstand the vibrations from the flywheel in which can cause the bolts to loosen or break. These TOMEI flywheel bolts are made from high intensity forged material of 19000psi (1336kgf\/cm2 and especially heat treated) its tensile strength greatly exceeds the factory genuine bolts. Also with the 12 head design helps making it easier to tighten its torque to exceed the normal bolt torque of 115Nm (11.7kgfm). A must have item for all 4AG owners.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eNOTES\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e4AG\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193070\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e・SIZE：M10 P1.25\u003cbr data-mce-fragment=\"1\"\u003e・8pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489476178223,"sku":"193070","price":56.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p132_boltset_4ag.jpg?v=1677176024"},{"product_id":"tomei-reinforced-washer-set-rb26dett","title":"Tomei REINFORCED WASHER SET For NISSAN RB26 193029","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2770 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eWhen needing to maintain the sealing characteristics and engine rigidity of the head gasket by the firm holds of the cylinder head to the block. Maintaining the perfect seal at higher pressures that are found with performance engines usually puts extreme stress loads on these washers which run the risk of deforming and or damaging the stock washers. The stock washers are not always a perfectly flat surface so any signs of warping or uneven surfaces on the washers can cause the bolts\/nuts to loose the correct tension when under excessive loads. The TOMEI strengthened washer is made with SCM435 material which helps with guaranteeing the correct surface pressure at all times.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eQTY\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"2\" data-mce-fragment=\"1\"\u003eRB26DETT\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e14\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193029\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e191093\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"2\" data-mce-fragment=\"1\"\u003eRB25DET\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e14\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193051\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e191086\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"2\" data-mce-fragment=\"1\"\u003eSR20DET\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e10\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193037\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e191086\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSCM435(With Surface Treatment)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eRB26:M12 \/ d=23.5 \/ t=4\u003cbr data-mce-fragment=\"1\"\u003eRB25,SR20:M11 \/ D=22.0 \/ t=3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【REFERENCE DATA：Stock Washer with visible cracks】\u003c\/span\u003e\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/washer.jpg\" alt=\"\" width=\"300\" height=\"200\" class=\"aligncenter size-full wp-image-2774\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/washer.jpg\"\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489476210991,"sku":"193029","price":60.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p132_rb26_washer_2.jpg?v=1677175942"},{"product_id":"tomei-reinforced-washer-set-rb25det","title":"Tomei REINFORCED WASHER SET For NISSAN RB25 193051","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2770 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eWhen needing to maintain the sealing characteristics and engine rigidity of the head gasket by the firm holds of the cylinder head to the block. Maintaining the perfect seal at higher pressures that are found with performance engines usually puts extreme stress loads on these washers which run the risk of deforming and or damaging the stock washers. The stock washers are not always a perfectly flat surface so any signs of warping or uneven surfaces on the washers can cause the bolts\/nuts to loose the correct tension when under excessive loads. The TOMEI strengthened washer is made with SCM435 material which helps with guaranteeing the correct surface pressure at all times.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eQTY\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"2\" data-mce-fragment=\"1\"\u003eRB26DETT\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e14\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193029\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e191093\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"2\" data-mce-fragment=\"1\"\u003eRB25DET\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e14\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193051\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e191086\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"2\" data-mce-fragment=\"1\"\u003eSR20DET\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e10\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193037\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e191086\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSCM435(With Surface Treatment)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eRB26:M12 \/ d=23.5 \/ t=4\u003cbr data-mce-fragment=\"1\"\u003eRB25,SR20:M11 \/ D=22.0 \/ t=3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【REFERENCE DATA：Stock Washer with visible cracks】\u003c\/span\u003e\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/washer.jpg\" alt=\"\" width=\"300\" height=\"200\" class=\"aligncenter size-full wp-image-2774\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/washer.jpg\"\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489476243759,"sku":"193051","price":60.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p132_rb26_washer_1.jpg?v=1677175877"},{"product_id":"tomei-reinforced-washer-set-sr20det","title":"Tomei REINFORCED WASHER SET For NISSAN SR 193037","description":"\u003cdiv id=\"main\" data-mce-fragment=\"1\"\u003e\n\u003carticle class=\"post-2770 post type-post status-publish format-standard hentry category-16\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"content-body en\" data-mce-fragment=\"1\"\u003e\n\u003cp class=\"description\" data-mce-fragment=\"1\"\u003eWhen needing to maintain the sealing characteristics and engine rigidity of the head gasket by the firm holds of the cylinder head to the block. Maintaining the perfect seal at higher pressures that are found with performance engines usually puts extreme stress loads on these washers which run the risk of deforming and or damaging the stock washers. The stock washers are not always a perfectly flat surface so any signs of warping or uneven surfaces on the washers can cause the bolts\/nuts to loose the correct tension when under excessive loads. The TOMEI strengthened washer is made with SCM435 material which helps with guaranteeing the correct surface pressure at all times.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003ePRODUCT INFO\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003eAPPLICATION\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eQTY\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003eP\/N\u003c\/th\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"2\" data-mce-fragment=\"1\"\u003eRB26DETT\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e14\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193029\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e191093\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"2\" data-mce-fragment=\"1\"\u003eRB25DET\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e14\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193051\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e191086\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd rowspan=\"2\" data-mce-fragment=\"1\"\u003eSR20DET\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e10\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e193037\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e191086\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eFEATURE \/ SPEC\u003c\/h3\u003e\n\u003cdiv class=\"table-box\" data-mce-fragment=\"1\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eMATERIAL\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSCM435(With Surface Treatment)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003cth data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003eSIZE\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd data-mce-fragment=\"1\"\u003eRB26:M12 \/ d=23.5 \/ t=4\u003cbr data-mce-fragment=\"1\"\u003eRB25,SR20:M11 \/ D=22.0 \/ t=3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan class=\"en\" data-mce-fragment=\"1\"\u003e【REFERENCE DATA：Stock Washer with visible cracks】\u003c\/span\u003e\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/washer.jpg\" alt=\"\" width=\"300\" height=\"200\" class=\"aligncenter size-full wp-image-2774\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.tomei-p.co.jp\/catalogue\/wp-content\/uploads\/2017\/08\/washer.jpg\"\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter data-mce-fragment=\"1\"\u003e\u003cnav id=\"footer-nav\" data-mce-fragment=\"1\"\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":44489476276527,"sku":"193037","price":45.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/products\/p132_rb26_washer.jpg?v=1677175712"},{"product_id":"tomei-head-studs-for-nissan-vq-193110","title":"Tomei HEAD STUDS For NISSAN VQ 193110","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003eTOMEI\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Number\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003e193110\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Car\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003eNISSAN\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Engine\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003eVQ\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Description\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003eIn order to secure the performance required of head gaskets, such as cooling, rigidity, and sealing, it is necessary to strengthen combination of a cylinder head and a cylinder block. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated.\u003cbr\u003eAPPLICATION: VQ35DE\u003cbr\u003eBORE: 87.0\u003cbr\u003eBolt×16\u003cbr\u003eNut×16\u003cbr\u003eWasher×16\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemarks\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003e* Dummy head cylinder boring is highly recommended to get the best result for the stud bolt installation.\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":55116090933625,"sku":"250009","price":285.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/files\/nri101_vq_head_stud_2000x_1e7e6139-756a-4fb8-867f-5f58b688b760.webp?v=1744572344"},{"product_id":"tomei-main-studs-for-nissan-vq-193111","title":"Tomei MAIN STUDS For NISSAN VQ 193111","description":"\u003cdiv id=\"main\"\u003e\n\u003carticle class=\"post-2707 post type-post status-publish format-standard hentry category-16\"\u003e\n\u003cdiv class=\"content-body en\"\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003eTOMEI\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Number\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003e193111\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Car\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003eNISSAN\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Engine\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003eVQ\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Description\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003eCrank bearing cap needed to secure strict metal clearance of the crankshaft by fixing bearing firmly at the time of high rotation and high load, enduring the force from bend or torsion vibration. However, in combination with a common bolt and nut, no matter what strengthen bolt it may used, bolting power concentrates on from third mountains to the 1st mountain of the screw, and the total bolting power cannot be increased beyond a certain value. Moreover, excessive stress is concentrated and may damage the bolt. Stud bolt, on the other hand, is applied dynamic design to its threading so that the bolting force is dispersed to all the screw threads and mighty bolting power is generated.\u003cbr\u003eAPPLICATION: VQ35DE\u003cbr\u003eBolt×16\u003cbr\u003eNut×16\u003cbr\u003eWasher×16\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemarks\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv align=\"left\"\u003e* Dummy head cylinder boring is highly recommended to get the best result for the stud bolt installation.\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cfooter\u003e\u003cnav id=\"footer-nav\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/nav\u003e\u003c\/footer\u003e","brand":"TOMEI","offers":[{"title":"Default Title","offer_id":55116095127929,"sku":"193111","price":253.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/3531\/0639\/files\/nri101_vq_main_stud_2000x_457c5fe4-4c75-4a93-8dd1-e7574b8b53bf.webp?v=1744572500"}],"url":"https:\/\/tomei.uk\/collections\/studs-and-bolts.oembed","provider":"TOMEI UK","version":"1.0","type":"link"}