ARP 2302202 Pro Series Pressure Plate Bolt Kit Pressure plate fasteners play a key role in the performance and safety of a vehicle Manufactured from a premium grade chrome alloy that is heat-treated to 200,000 psi, which is considerably stronger than Grade 8 hardware Originally designed for NASCAR Winston Cup competition Bolt is application specific to ensure the optimum grip length, with a thread size of 3/8-16 Kits come complete with washers