Super strong fastener lets you stop worrying about shearing your torque converter boltCustom designed to provide the optimum gripRated at 200,000 PSI, which is considerably stronger than Grade 8 hardwareUnder head length is .450, and thread size is 5/16-24Comes complete with hardened parallel-ground washerTo maintain a reputation for "zero defects", ensure optimum quality control, and produce fasteners of exceptionally high quality, ARP controls all aspects of the manufacturing process, performing all operations in-house where they can be closely monitored. This torque converter bolt kit is a good example of how ARP takes extraordinary steps to produce the very finest products of their kind on the market today. You can forget about the problem of shearing a torque converter bolt after you install this super strong 200,000 psi gem. Designed for the specific application, it provides the optimum grip and comes complete with a hardened parallel-ground washer.