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The ARP chromoly bolt is a chromoly-threaded fastener sized 7/16-20 x 5.375 that supplies a specific long-length option for fastening needs. It includes a 1/2-inch, 12-point head with a black oxide finish and is intended for mechanical or fabrication applications. The 12-point drive offers a tight turning profile useful where clearance or socket engagement matters.
ARP 7/16-20 X 5.375 1/2 12pt black oxide bolts
