Conduit Grounding Bushing; Type Threaded; Trade Size 1-1/4 Inch; Wire Size 14 to 6 AWG; Lug Type Solid Copper; Throat Type Insulated; Diameter 1-7/8 Inch; Material Ball Burnished Mirror Smooth Die-Cast Zinc; Standard Package 200; Approval UL 514B, UL (Canada and US); Used On IMC/Rigid Conduit; Applicable Standard Federal Specification A-A-50553, NEMA FB-1; Insulator Material Plastic; Insulation Temperature 150 Deg C