Mr. Gasket Torque Converter to Flexplate Bolts are forged from high quality steel and heat-treated for extra strength, these Grade 8 fasteners are a must for all hi-performance applications. Black plated finish helps resist rust and corrosion. Kits are complete with lock washers, where needed. Application: GM (General Motors) 10 inch Race Converter 7/16 inch-20 x 1-1/4 inch (w/nuts) 3 per set.