EMT Compression Connectors with Insulated Throat 4"- Zinc Die Cast - EMT Compression Connectors are Used To Secure EMT Conduit in an Enclosure.EMT Compression Connectors - Zinc Die Cast - Insulated Throat 4" features include: To secure and terminate EMT to knockouts in concrete tight box, dry or damp location applications Concrete Tight Male NPS Hub Thread Die Cast Zinc UL/CSA Listed Also UL Listed for use with Rigid IMC Order Qty of 1 = 1 Piece Below is more info on our EMT Compression Connectors - Zinc Die Cast - Insulated Throat 4"