ARP Replacement Nuts - 5/16"-24 Thread, 3/8" 12 Pt. Socket Size - (10 Pack) 57950BK select the firesleeve with an

select the firesleeve with an I

modern profile with defined wings for seatbelt containment

X-Tech stretch elbows: pre-bent 4-way stretch allow for effortless movement of the arms

Fitment Note with Throttle Body Spacer:

ARP Replacement Nuts - 5/16"-24 Thread, 3/8" 12 Pt. Socket Size - (10 Pack) 57950BK select the firesleeve with anConstructed from the finest aerospace quality materials. All replacement nuts meet ARP's exacting quality control standards. All replacement nuts are 180, 000 psi tensile strength. ARPs 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