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ARP chromoly 7/16-14 x 3.250 hex head bolt with 1/2-inch wrenching and black oxide finish is a chromoly fastener sized for 7/16-14 threads and a 3.250-inch length. The hex head fits a 1/2-inch wrench for installation. It’s intended for fabrication and assembly uses that require this thread, length, and wrenching size.
ARP 7/16-14 X 3.250 hex 1/2 wrenching black oxide bolts
