Southwire LNS50 Conduit Locknut 1/2 Inch Zinc Plated Steel

Product Description

The SOUTHWIRE LNS50 is a threaded steel conduit locknut used to secure conduit fittings and connectors to electrical enclosures, junction boxes, and panel knockouts. Manufactured from zinc plated steel, it delivers corrosion resistance suited to standard indoor and protected outdoor conduit installations. The threaded engagement provides a firm mechanical connection that maintains grounding continuity through the conduit system. Electricians reach for this locknut during rough-in and finish work wherever rigid metal conduit or electrical metallic tubing terminates at a box or enclosure. Each package contains 1000 locknuts, making it well suited for commercial and large residential projects requiring high-volume conduit terminations.

The LNS50 is sized for 1/2 inch trade size conduit, the most common size in residential and light commercial electrical work. Typical applications include panel rough-ins, sub-panel feeders, device box assemblies, and any conduit run requiring a secure, code-compliant locknut at the termination point. The threaded installation method is straightforward and compatible with standard 1/2 inch conduit connectors and fittings. The 1000-count package is practical for electrical contractors stocking service vehicles or shop inventory.

Key Features

• Zinc plated steel construction for corrosion resistance in standard electrical installations
• Threaded installation for secure, reliable conduit termination
• 1/2 inch trade size fits the most commonly used conduit diameter in residential and commercial work
• 1000-count package reduces restocking frequency on high-volume jobs
• Supports grounding continuity through metal conduit systems

Compatibility

Designed as an OEM-style replacement and standard-stock locknut for 1/2 inch trade size threaded conduit fittings and connectors used in residential and commercial electrical conduit systems.

Installation Notes

Installation is performed by licensed electricians in accordance with the National Electrical Code. De-energize all circuits and lock out the panel before working inside any enclosure. Thread the locknut onto the conduit connector and tighten firmly by hand, then seat fully with a screwdriver or locknut wrench to ensure metal-to-metal contact for grounding continuity. Do not over-tighten to the point of cracking the fitting hub or deforming the enclosure knockout.

Technical Specifications

• Trade Size: 1/2 inch
• Material: Zinc Plated Steel
• Installation Method: Threaded
• Package Quantity: 1000
• Prop 65 Warning: Yes

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: LNS50