Arlington Industries GL100 Grounding Locknut 1 Inch

Product Description

The ARLINGTON INDUSTRIES GL100 is a 1-inch grounding locknut designed to secure conduit fittings to enclosures while establishing a reliable ground path. It threads onto standard conduit connectors and bites into the metal knockout edge of panels, junction boxes, and enclosures to ensure low-impedance bonding contact. Licensed electricians install this hardware as part of conduit termination work in both new construction and retrofit applications. It is sold individually and is a staple fitting for panel work, box assemblies, and conduit rough-in tasks requiring secure mechanical and electrical grounding connection.

The GL100 is suited for use in residential, commercial, and light industrial electrical installations where 1-inch conduit terminations must meet grounding and bonding requirements. It fits standard 1-inch conduit connectors and is typically used at junction boxes, load centers, and electrical enclosures. Electricians installing EMT, rigid, or IMC conduit systems will find this locknut appropriate for standard knockout terminations where a grounding locknut is specified or required by code.

Key Features

• 1-inch trade size fits standard 1-inch conduit connectors and knockouts
• Grounding-style locknut provides mechanical bite for low-impedance bonding contact
• Single-piece construction for straightforward installation
• Sold individually, allowing quantity purchasing to match job requirements

Compatibility

Designed as an OEM-style replacement and standard-use grounding locknut for 1-inch conduit termination fittings in residential and commercial electrical enclosures and junction boxes.

Installation Notes

Grounding locknuts are installed by licensed electricians in accordance with NEC bonding and grounding requirements. De-energize the panel or enclosure before beginning any conduit termination work. Thread the locknut onto the conduit connector until the serrated edge seats firmly against the interior wall of the knockout, then tighten with a screwdriver or locknut wrench to ensure solid metal-to-metal contact. Do not substitute a standard locknut where a grounding locknut is required by the authority having jurisdiction.