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ARP chromoly 5/16-24 x 4.250 12-point black oxide bolt is a single chromoly fastener finished in black oxide. The 12-point head accepts standard 12-point sockets and provides clearance for tight installations. Use this bolt where a 5/16-24 thread and 4.250-inch length are required for fabrication, maintenance, or custom projects.
ARP 5/16-24 x 4.250 12pt black oxide bolts
