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The ARP chromoly bolt specified as 7/16-14 x 3.250 features a 12-point head, black oxide finish, and 1/2-inch wrenching. It pairs 7/16-14 threading with a 3.250-inch shank and a 12-point drive profile for reliable bolted connections. This chromoly fastener is intended for fabrication and assembly tasks where a 12-point head and 1/2-inch wrenching are required.
ARP 7/16-14 X 3.250 12pt 1/2 wrenching black oxide bolts
