TPI Wheel Bolts (10 pcs), Conical Seat, 17mm Flower, M14 × 1.25, 40mm, Black Colour

TPI Wheel Bolts (10 pcs), Conical Seat, 17mm Flower, M14 × 1.25, 40mm, Black Colour
TPI security wheel bolts are designed to reliably secure your car's wheels. They are made from high-grade chromium-vanadium or chromium-molybdenum steel, which undergoes a heat-hardening process to ensure consistent hardness and strength. Featuring a conical seat and a specific 'flower' head design, they are the ideal choice for demanding drivers who require security without compromise.
Key features of the TPI M14×1.25, 40mm security bolts
- Designed for the safe and reliable mounting of wheels
- Made from high-grade chromium-vanadium or chromium-molybdenum steel
- 'Flower' type bolt head for tightening with a 17mm wrench
- 60° conical seat
- Heat-hardening process ensures consistent hardness and strength
- Surface finished with zinc plating or triple nickel and chrome plating
- Every batch undergoes a salt spray test and a tensile test
- M14×1.25 thread and 40mm length
- Package contains 10 bolts
Materials and surface finish
TPI bolts are based on high-grade steel, specifically chromium-vanadium or chromium-molybdenum (ASTM 4140 / SCM 440). Each piece undergoes a heat-hardening process that ensures consistent hardness and strength throughout its entire cross-section. The surface finish, created by zinc plating or triple nickel and chrome plating, protects the bolts from corrosion. Their reliability is also confirmed by thorough testing of every production batch, which includes a salt spray test and a tensile test.
Specifications
Features
Specifications can be changed without notice. Images are for illustrative purposes only.

