TPI wheel bolts (10 pcs), conical seat, 17mm hex, M14×1.5, 28mm, black

TPI wheel bolts provide a secure and reliable way to mount your car's wheels. They are made from high-grade steel (chrome-vanadium or chrome-molybdenum) and are heat-treated to ensure consistent hardness and strength throughout their entire cross-section. This model has an M14×1.5 thread with a length of 28mm and a conical seat. It features a hexagonal head designed for a 17mm spanner. These bolts are suitable for discerning drivers who refuse to compromise on safety.

Materials and surface finish

TPI bolts are made from high-grade steel, either chrome-vanadium or chrome-molybdenum. Each piece undergoes a heat-treatment process, which ensures consistent hardness and strength throughout its entire cross-section. The surface is finished with zinc plating or triple nickel and chrome plating, which significantly increases corrosion resistance. In addition, every production batch undergoes a tensile test and a salt spray test to verify a level of reliability that surpasses standard OEM requirements.