ARP 12mm x 1.25 12 Point Nuts (10) HS11SASPA Bolts have a 7/16"-20 internal

Bolts have a 7/16"-20 internal thread on one end for use with bolt-on and swiveler spring cups

1968-1968 International 1300C

Disc Brake

1976-1979 Chevrolet Monza

ARP 12mm x 1.25 12 Point Nuts (10) HS11SASPA Bolts have a 7/16"-20 internalARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Nut 12 mm x 1. 25 Thread 14