Locknut, Material of Construction: Steel, Nut Type: Locknut, Thread Size: 1 IN, Height: 0.19 IN, Width: 1.69 IN, Size: 1 IN, Jaw Size: 15/16 IN Height X 7/8 IN Width, Standard: UL 514B, UL File Number E14814, CSA C22.2 No. 18.3, CSA Certified 065178, NEMA FB-1, For Rigid Conduit And IMC