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. ARP's heat-treated 8740 chrome moly wheel studs are a much-needed replacement for any car engaged in oval track or drag racing competition. They have a tensile strength of 190,000 psi, and are able to easily handle the tremendous acceleration shock loads (shear) and lateral forces (elongation) found in racing. These studs are cadmium plated for extra durability and have the following dimensions: .680 knurl diameter, 3.125 under head length, .400 knurl length, .400 nose length, and 1/2-20 thread size. There are five studs in this package, and nuts are available separately.