This oil pump stud kit, manufactured from 8740 chrome moly steel, allows oil pumps to be removed and installed repeatedly without danger of stripping threads in the rear main cap, common with the stock bolt set-up. Heat treated to a Rockwell hardness of 36-38, this Ultra quality stud features rolled threads after heat treat and black finish. Kit is complete with a parallel ground and heat-treated washer and Grade-8 hex nut.