ARP 7/16-20" Thread Nut 1/2" 12 Point Head Chromoly Black Oxide - Universal HSYTH11 17 3/4'' length 5/8'' ID

17 3/4'' length 5/8'' ID 6061 T6 Aircraft Grade Billet Aluminum

Includes two replacement post and screws for helmet visor tear offs

Male Union Fitting Straight 12AN

Supports up to (on E85) - 550HP EFI - Forced Induction - 750HP EFI - Naturally Aspirated - 700HP Carbureted - Forced Induction - 900HP Carbureted - Naturally AspiratedAeromotive Inc

AED custom fuel line kits fit Holley dual feed carburetors

ARP 7/16-20" Thread Nut 1/2" 12 Point Head Chromoly Black Oxide - Universal HSYTH11 17 3/4'' length 5/8'' IDARPs 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 7 16 20 in Thread 1 2