ARP Stainless Steel 12 Point Nuts - 3/8-24 (10) Helmet Chin Bar Vent ASM stands for Anti-Submarining

ASM stands for Anti-Submarining

Threads are 7/16"-14 x 1

Spur Gear Fuel Pump

1960-1974 Pontiac Bonneville

460 in Effective Stud Length

ARP Stainless Steel 12 Point Nuts - 3/8-24 (10) Helmet Chin Bar Vent ASM stands for Anti-SubmariningARPs 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 3 8 24 in Thread 7 16