Rigid/IMC Grounding Bushing, Type Threaded, Trade Size 1 Inch, Wire Size 14 to 2/0 AWG, Lug Type Lay In, Bright Dip Bronze, Conductor Material Copper, Throat Type Insulated, Diameter 1-3/4 Inch, Height 9/16 Inch, Material Zinc Plated Malleable Iron Body, Zinc Plated Steel Set Screw, Zinc Plated Steel Clamping Screw, Approval UL 467, CSA C22.2, Used On Rigid Conduit/IMC, Applicable Standard NEMA FB-1, Temperature Rating 150 Deg C