Fastenal 4631-035: 5/8-11 Zinc Castle Nut


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Imperial 5/8-11 coarse-thread castle nut made of steel with a zinc finish. It is fully threaded, 23/32 inches thick, has a 15/16-inch wrench size, and conforms to ANSI B18.2.2, ASTM A563/A563M, and ASTM F1941/F1941M. Castle nuts are slotted for use with a cotter pin to provide secure retention.