ARP S/S 12pt. Nut - 7/16-20 - (10 Pack) HASZ20PHOTORP It provides your engine with

It provides your engine with the largest amount of high-flowing air and delivers the highest power gains in most cases

With two layers of progressively finer mesh synthetic media between 100 percent polyurethane top and base

2004-2008 Ford E-450 Super Duty

Using an all new design and polymer

ARP S/S 12pt. Nut - 7/16-20 - (10 Pack) HASZ20PHOTORP It provides your engine withARPs 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 5 16 18 in Thread 3 8