Fastenal 0169573: 7/16"-20 Astm A563 Grade a Zinc Finish Steel Jam Nut


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Carbon steel hex jam nut with a zinc finish, Grade A, 7/16"-20 fine right-hand full thread. It conforms to ASME B18.2.2, ASTM A563, and ASTM F1941/F1941M; wrench size is 5/8", nut thickness is 0.240"-0.260", and head width is 0.675"-0.688".