Locknut, Material of Construction: Steel, Nut Type: Locknut, Thread Size: 1-1/2 IN, Height: 0.19 IN, Width: 2.38 IN, Size: 1-1/2 IN, Standard: UL 514B, UL File Number E14814, CSA C22.2 No. 18.3, CSA Certified 065178, NEMA FB-1, For Rigid Conduit And IMC