Designed to bond conduit to steel enclosures, the Halex 1-1/2 in. EMT Set-Screw Connector with Insulated Throat features nylon insulation and a Tri Drive screw head for use with most screwdrivers. Screw thread retention design to help prevent the screw from vibrating loose. Reversible locknut designed to cut through protective coatings on boxes and enclosures to ensure ground continuity.