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ARP 1/2-20 x 4.250 chromoly hex bolt with black oxide finish is a long threaded fastener described for fabrication and repair. It lists 1/2-20 threads, a 4.250-inch length and a hex head for standard wrench or socket use, with black oxide in the description. Use this bolt where increased reach from a chromoly hex fastener is required, and observe proper torque during installation.
ARP 1/2-20 x 4.250 hex black oxide bolts
