Crouse-Hinds GL Bonding Locknu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.60
Crouse-Hinds GL Bonding Locknut, Rigid/IMC Steel

Crouse-Hinds GL Bonding Locknut, Rigid/IMC Steel

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Model: GL12

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1.60
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Crouse-Hinds GL Bonding Locknut, Rigid/IMC Steel

The Crouse-Hinds GL bonding locknut is a steel locknut engineered for use with Rigid and IMC conduit systems, providing a reliable mechanical and electrical bond between conduit and enclosure. This GL Series locknut is available across a range of trade sizes — 3/4", 1", 1-1/2", and 4" — to support a wide variety of conduit terminations in commercial and industrial installations. Constructed of steel, the GL locknut is designed to secure conduit connections at panelboards, enclosures, and boxes while helping maintain continuity of the equipment grounding path.

Key Features

  • Trade Size Range: Available in 3/4", 1", 1-1/2", and 4" to match Rigid/IMC conduit terminations across a project's conduit runs.
  • Durable Construction: Steel body construction provides the strength needed for secure, long-lasting conduit-to-enclosure connections.
  • Rigid/IMC Compatibility: Designed specifically for use with Rigid and IMC conduit systems, ensuring proper thread engagement and fit.
  • Bonding Function: Serves as a bonding locknut, helping establish a secure mechanical connection that supports the electrical continuity of the conduit system.
  • Locknut Design: Simple, field-proven locknut design allows straightforward installation onto threaded conduit ends at boxes and enclosures.

Technical Specifications

  • Product Type: Bonding Locknut
  • Material: Steel
  • Conduit Type: Rigid/IMC
  • Trade Sizes Available: 3/4", 1", 1-1/2", 4"

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Rigid and IMC Conduit Terminations at Enclosures and Boxes
  • Panelboard and Load Center Conduit Connections
  • Grounding and Bonding of Conduit Systems
  • New Construction and Electrical Retrofit Projects

Why Crouse-Hinds?

Crouse-Hinds is a recognized name in conduit, fittings, and grounding/bonding hardware for demanding electrical installations. The GL bonding locknut's steel construction and Rigid/IMC compatibility make it a dependable choice for electricians who need secure, code-compliant conduit terminations across multiple trade sizes on the same job.

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Manufacturer Resources

Product Specs

list_batch:
CRS-20260917
Product Type:
Grounding Locknut
Product Material:
Steel
Product Size:
3/4" - 4"
Configuration:
Rigid/IMC
Department:
Electrical
Product Subgroup:
Grounding & Bonding
Product Group:
Grounding & Bonding

Crouse-Hinds GL12 – Frequently Asked Questions

1) What trade sizes does the Crouse-Hinds GL bonding locknut come in?
The GL bonding locknut is offered in four trade sizes: 3/4 inch (GL12), 1 inch (GL13), 1-1/2 inch (GL15) and 4 inch (GL-20). Order by the conduit trade size you are terminating, not by the knockout size in the enclosure, since the locknut threads onto the conduit or the hub threads.
2) Will a Crouse-Hinds GL locknut work on EMT?
No. The GL is built for Rigid and IMC conduit threads, which are tapered NPT-style conduit threads. EMT is unthreaded and terminates with a set-screw or compression connector, so you would bond that connector instead with a grounding bushing or bonding wedge rather than a GL locknut.
3) What is the difference between a bonding locknut and a standard conduit locknut?
A standard locknut just holds the conduit mechanically in the box. The Crouse-Hinds GL is a bonding locknut, so it is made to bite through enclosure coating and keep the equipment grounding path continuous through the conduit-to-enclosure joint as well as hold the connection tight. Use it where you need the raceway itself to carry ground continuity at panelboards, load centers and boxes.
4) Can I use one GL part number across all the conduit sizes on my job?
No, bonding locknuts are size specific. A single job with 3/4 inch homeruns and a 4 inch service feeder needs GL12 for the 3/4 inch and GL-20 for the 4 inch, with GL13 and GL15 covering 1 inch and 1-1/2 inch. Buyers standardizing a facility usually stock all four so the grounding detail stays the same on every termination.
5) Do I still need a grounding bushing if I use a GL bonding locknut?
It depends on the termination. The GL bonds the conduit to the enclosure wall and gives you a point to land a bonding jumper at panelboards, boxes and load centers. Where your design calls for a bonding jumper off the conduit end on the inside, or where you need thread protection on the conductors at a large raceway, an insulated grounding bushing is the companion part. Many installers run the GL on the outside and a bushing on the inside of the same 4 inch entry.
6) Is the Crouse-Hinds GL locknut steel or malleable iron?
Steel. That matters if your spec calls for a steel bonding locknut on a rigid or IMC run, and it means you should keep an eye on dissimilar-metal contact where it lands against aluminum enclosures or fittings.
How fast can I get the Crouse-Hinds GL12 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Crouse-Hinds GL12 come with a warranty?
Absolutely. The Crouse-Hinds GL12 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Crouse-Hinds GL12?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Crouse-Hinds GL12 from ZenSupply?
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