3-1/2" Insulated Malleable Iron Metallic Grounding Bushings Threadless

3-1/2" Insulated Malleable Iron Metallic Grounding Bushings Threadless – Electrical Grounding Solutions This 3-1/2" insulated metallic grounding bushing is designed for use with aluminum lay-in grounding lugs to terminate conduit service, suitable for electrical distributors and switchgear suppliers. It is recommended for applications involving copper or aluminum bare ground connectors. The product features a protective thermoplastic throat liner rated to 105 °C, which prevents damage to wire insulation. Available in a threadless set screw model, it is compatible with threaded or threadless rigid conduit or IMC, making it a reliable component in lighting solutions and wire and cable installations. Specifications Material: Malleable Iron Connection: Female Threaded Product Weight: 0.6750 lbs Size: 3-1/2" Manufacturer: Southwire Manufacturer Part #: 339MSS UL Listed Features Thermoplastic throat liner rated flame retardant to 105 °C Set screws allow locking the bushing in any desired position Suitable for use on threaded or threadless rigid conduit or IMC Protective plastic liner prevents damage to wire insulation Round surface design minimizes wire insulation damage High-grade malleable iron construction with zinc-plated finish Downloads & Links Spec Sheet