ARP S/S 1/2-20 12pt. Nuts - (10 Pack) 41011510 ORB-12 inlet and ORB-10 outlet

ORB-12 inlet and ORB-10 outlet ports

have 1/4"-20 thread and a built-in ALL18560 captured washer

Internal lacing system with adjustable Velcro strap reduces snag potnetial of the laces

three generations of track experience

while bolt kits are shipped with the required flat washers

ARP S/S 1/2-20 12pt. Nuts - (10 Pack) 41011510 ORB-12 inlet and ORB-10 outletARPs 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 1 2 20 in Thread 9 16