Bridgeport SGB-383CL 1 IN Splt Gnd Bsh Lug 4-14 Awg, Box of 25
https://nsiindustries.com/product/insulated-split-grounding-bushing-1-zinc-with-aluminum-lug-2/
Use the Bridgeport 1″ Mighty-Rite Zinc Die Cast Insulated Split Grounding Bushing to install bushings to 1″ rigid or IMC conduit or EMT fittings before or after wire pull-through.