Bridgeport SGB-388CL Split Grounding Bushing, 3 IN, Zinc Alloy, 14-1/0 AWG, Bag of 1
https://nsiindustries.com/product/bridgeport-sgb-388cl-3-in-splt-gnd-bsh-w-lug-14-1-0-box-of-25/
Use the Bridgeport 3″ Mighty-Rite Zinc Die Cast Insulated Split Grounding Bushing with Aluminum Lug to install bushings to 3″ rigid or IMC conduit or EMT fittings before or after wire pull-through.