The Bridgeport 1" 103-S Zinc-Plated Steel Conduit Locknut securely fastens threaded conduit to an unthreaded opening in a box or enclosure. Contractors can run into difficulties when securing conduit to an electrical box. The conduit locknut ensures that the connection between conduit and an electrical box stays in place. Operators can securely fasten the conduit from inside or outside the box. The zinc-plated steel body is corrosion resistant for long-term use. Bridgeport locknuts come in a wide range of sizes and styles to provide complete installation flexibility, helping you install fast and deliver more. We engineer our locknuts with quality and innovation, allowing contractors to save time and money on every job. When you need quality electrical fittings for more efficient jobs, look for Bridgeport Orange.