Insulated Split Grounding Bushing, 1-1/2″, Zinc with Aluminum Lug
https://nsiindustries.com/product/insulated-split-grounding-bushing-1-1-2-zinc-with-aluminum-lug-3/
Use the Bridgeport 1-1/2″ Mighty-Rite Zinc Die Cast Insulated Split Grounding Bushing with Aluminum Lug to install bushings to 1-1/2″ rigid or IMC conduit or EMT fittings before or after wire pull-through.