EMT Compression Connectors with Insulated Throat 3-1/2" - Steel - EMT Compression Connectors are Used To Secure EMT Conduit in an Enclosure.EMT Compression Connectors with Insulated Throat 3-1/2" features include: Use to connect EMT Conduit to Steel Outlet Box, Load Center, or other Metal Enclosures Concrete Tight (When Taped)Insulated Throat Male NPSM Hub Thread Heavy Steel Walls, Zinc Plated UL/CSA or cULus Listed Also UL Listed for use with Rigid IMC Order Qty of 1 = 1 Piece Below is more info on our Steel EMT Compression Connectors with Insulated Throat 3-1/2"