TPI wheel bolts (10pcs), ball seat R13, 17mm flower head, M14 × 1.5, 28mm, black
TPI wheel bolts (10pcs), ball seat R13, 17mm flower head, M14 × 1.5, 28mm, black
TPI locking wheel bolts are used to secure your car's wheels. They are designed with an M14×1.5 thread and a length of 28mm and correspond to the specifications of selected vehicle types. They have an R13 ball seat for the correct seating of the bolt in the wheel rim. The bolts are made of ASTM 4140 steel and their surface is protected by black chrome. The special "flower" shaped head acts as a security feature against unauthorised removal of the wheels.
Key features of TPI locking bolts
- Designed to secure car wheels against theft
- "Flower" shaped security head
- Made of ASTM 4140/SCM 440 steel (Cr-V or Cr-Mo)
- Black chrome surface finish
- Heat-treated for consistent hardness and strength
- Salt spray and tensile strength tested
- M14×1.5 thread
- Thread length 28mm
- R13 ball seat
- Wrench size 17mm
Quality and testing of TPI bolts
TPI bolts are made of chrome-vanadium or chrome-molybdenum steel (ASTM 4140/SCM 440). The material undergoes heat treatment, which gives it consistent hardness and strength throughout its length. Each production batch is subjected to testing, including a salt spray test to verify corrosion resistance and a tensile test to check strength. The black chrome finish further contributes to the protection of the material.
Specifications
Features
| Code: | AUPR131715 |
| Warranty: | 24 months |