| Material | ・Bolt SNCM439 (WPC treated) ・Nut SCM435 Tensile strength: 220,000psi (155kgf/mm2) Hardness HRC40～50 |
|---|---|
| size | M11 P1.50 |
SR20DE(T)193019 ￥58,000 (incl. tax ￥63,800) ・Bolt x 10 ・Nut x 10
●OEM bolts do not return to their original shape once they are stretchedGenerally, screws and bolts generate a fastening force by the reaction force caused by the stretching of the bolt itself.OEM bolts use a plastic region fastening system, so once they are stretched, they do not return to their original shape.When tuning an engine, the same bolt is used multiple times, such as for boring and honing with a dummy head attached and for repeated metal alignment, so if the bolt stretches every time it is used like an OEM bolt, it becomes difficult to manage the axial force and the precise clearance.
TOMEI stud bolts achieve high reproducibility by changing this to elastic region fastening, and by changing the material and manufacturing method, they achieve precise and strong fastening.
Delivery time: 1-3 business days
*Only available when manufacturer stock is available.
*Shipping costs are included in the above sales price.
TOMEI / SR20 main stud bolt
We will only accept returns if the product is defective or different from the product you ordered. If the product is obviously defective or the wrong item, we will cover the shipping costs for the return. This is only possible if you contact us within 7 days of receiving the product.
Please note that we cannot accept cancellations or returns due to customer convenience.
The following items cannot be cancelled, returned or exchanged:
・Items that have been opened or used
- Products that have been delivered more than 8 days ago
・Products that have scratches or stains after arrival
・Made-to-order products that are produced after your order