ARP 12-Point Black Oxide Bolts 640-4000 1/4-20 x 4.000in (Set of 5)

ARP 12-Point Black Oxide Bolts 640-4000 1/4-20 x 4.000in (Set of 5)

This five-bolt set fits general fastening applications that call for a 1/4-20 thread, 4.000 in underhead length and a 12-point head. Match the thread, grip and head clearance to the mating assembly.

• Thread 1/4-20
• Underhead length 4.000 in
• Thread length 1.000 in
• Socket size 5/16 in
• Material 8740 chromoly steel with black oxide finish
• Package 5 bolts
• Unthreaded grip length 3.000 in

ARP catalog specifications