You can forget about the problem of shearing a torque converter bolt after you install these super strong 200,000 psi gems. They are designed for each specific application and provide the optimum grip. Kits come with hardened parallel-ground washers. PartNumber : arp240-7301 Description : Torque Converter Bolt Kit; Pro Series; 4Pieces Thread : 5/16-24 UHL : 0.45 Engine Components::Hardware Kits - Other