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ARP 1/2-20 x 3.750 chromoly hex bolt with black oxide finish is a long threaded fastener described for fabrication and mechanical assembly. The source lists 1/2-20 threading, a 3.750-inch length and a hex head fit for standard sockets or wrenches, with black oxide finish. Use where extra reach from a chromoly hex bolt is required and follow installation torque guidance.
ARP 1/2-20 x 3.750 hex black oxide bolts
