Bridgeport SGB-383CL Split Grounding Bushing, 1 IN, Zinc Alloy, 14-4 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.