ARP Extended Wheel StudsARP'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 200,000 psi and are able to easily handle the tremendous acceleration shock loads (shear) and lateral forces (elongation) found in racing. The studs are sold in 5 packs and are cadmium plated for extra durability. Information from ARP.