2-1/2" Sealing Locknuts - Electrical Conduit Fittings Topaz 2-1/2" Sealing Locknuts are designed to securely affix conduits or connectors to electrical junction boxes or metal enclosures in wet locations. These locknuts provide moisture-proof protection with a PVC molded gasket ensuring a watertight seal. Constructed of steel with a zinc-plated finish, they are corrosion resistant and suitable for indoor and outdoor use. Ideal for electrical distributors and lighting solutions requiring reliable conduit connections, they comply with UL standards for safety and durability. Specifications Manufacturer: Southwire Manufacturer Part #: 717 Material of Construction: Steel Finish: Zinc Plated Height: 0.32 IN Product Weight: 0.1170 lbs Size: 2-1/2" Thread Pitch Diameter: 2.777 - 2.788 inches UPC: 751338175105 UL Listed: UL 514B Features PVC molded gasket for watertight seal Zinc plated finish for natural corrosion resistance Suitable for securing rigid and IMC conduit or threaded fittings Approved for use in wet locations Meets UL Standard 514B, Fed. Spec W-F-406E, W-F-406D, and NEMA FB 1-2014 Downloads & Links Spec Sheet