ARP Flange Base Hex Nuts, SAE

Despite being basic nuts, these fasteners still carry all of ARP's legendary quality and workmanship. They are a great match to high-strength ARP bolts.

These SAE (inch) nuts have a slight flange around the base that extends from corner to corner on the hex. The flange OD is just large enough to prevent the points of the hex from digging in and damaging parts.