To 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 ARP takes extraordinary steps to produce the very finest products of their kind on the market today Now you can secure any engine with complete confidence with ARPs rugged motor mount bolts The bolts in this kit are manufactured from black oxide finished 8740 chrome moly steel, feature conventional hex style heads, and come complete with flat washers