Use the Bridgeport 387 2-1/2-Inch Malleable Iron Insulated Grounding Bushing to terminate service conduit to a cabinet with a locknut. The bushing features a plastic metaliner that prevents damage to wire insulation and a 14 to 1/0 lug for bonding a jumper to a neutral busbar. Temperature rated to 150 degrees Celsius, this bushing is 13/16 inches long with diameters of 2-5/16 inches and 3-1/8 inches, and is solidly built to meet construction and general industry OSHA-recognized, NRTL-listed electrical standards