Appleton HUBG200S Insulated Hub With Grounding Screw, Size: 2 IN, Material: Aluminum, Enclosure: NEMA 2, 3, 3R, 4, 4X, 5, 12, 13, Insulation Class: 150 DEG C, Finish: Aluminum, Cable Entry: 2-1/2 IN Knock Out, Construction: Rugged Die-Cast, Length: 1.89 IN, Height: 3.23 IN, Standard: UL 514B, UL File Number E14814, CSA C22.2 No. 18.3, CSA 065178, NEMA FB-1, For Use To Connect Rigid Metal Conduit Or IMC To A Threadless Opening In An Enclosure