Reliable FHNCZ12MR Hex Nut, Coarse Thread, 1/2-13 Thread, Steel, Zinc, 2 Grade

Reliable Hex Nut, Thread Type: Coarse, Thread Size: 1/2-13, Hex Size: 0.448 in H x 0.75 in W Flat x 0.866 in W Corner, Steel, 2 Grade, Zinc