Threaded, Set Screw Type; Electro Zinc Plated Cast Malleable Iron Material; 0.735 Inch; Rigid Conduit/Imc Used on; 14 to 4 AWG Wire Size; Copper/Aluminum Conductor Material; UL, CSA Approval; 2.19 Inch Diameter; 50 Standard Package; 1-1/4 Inch Trade Size