ARP NASCAR Wheel Stud Kit - Extra Long Rear - 5/8"-18 Thread - 3.600" Under Head Length - 0.660" Knurl Diameter - 1.550" Knurl Length 56-1421 Triple Layer

Triple Layer

Throwout Bearing

Internal pockets

60cc or 72cc combustion chambers

ARP NASCAR Wheel Stud Kit - Extra Long Rear - 5/8"-18 Thread - 3.600" Under Head Length - 0.660" Knurl Diameter - 1.550" Knurl Length 56-1421 Triple LayerTough enough for use in NASCAR with J form threads, exclusive longer than standard nut starter, and a bullet shaped radius to help eliminate cross threading. Studs are shot peened with a special baked on dry lube, and are double magnafluxed. Rated at 190, 000 psi tensile strength. The finest wheel studs available! All applications fit Stock Car Products and Speedway Engineering hubs (and others). ARPs product line contains thousands of part numbers,