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The ARP chromoly 1/4-28 x 3.500-inch 12-point bolt is finished in black oxide and provided as a threaded fastener for fabrication and general assembly tasks. The 12-point head accepts 12-point sockets, and chromoly material supports consistent thread form and a protective finish. Chosen when a 3.5-inch 1/4-28 bolt with black-oxide surface and reliable sizing is required.
ARP 1/4-28 x 3.500 12pt black oxide bolts
