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ARP chromoly 7/16-14 x 4.250 hex head bolt with 1/2-inch wrenching and black oxide finish is a chromoly fastener sized for 7/16-14 threads and a 4.250-inch length. The hex head accepts a 1/2-inch wrench for tightening, and it’s intended for fabrication and assembly applications requiring this thread and length.
ARP 7/16-14 X 4.250 hex 1/2 wrenching black oxide bolts
