Best Locknut Electrical Conduit Fittings of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 6, 2025

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Locknut electrical conduit fittings are an essential component of any electrical installation. These fittings are designed to secure and connect electrical conduits to junction boxes, enclosures, or other electrical equipment. They are made from high-quality materials that provide excellent durability and resistance to corrosion, ensuring long-lasting performance. Locknut electrical conduit fittings come in a variety of sizes and styles, making them suitable for a wide range of applications. They are also easy to install and require no special tools or expertise. Whether you're a DIY enthusiast or a professional electrician, locknut electrical conduit fittings are a must-have for any electrical project.

At a Glance: Our Top Picks

Yaocom 50 Pcs Rigid Conduit Lock Nuts Cover #TOP 1
Yaocom 50 Pcs Rigid Conduit Lock Nuts
ftb score rating icon 9.8
Sigma Electric ProConnex 45101 Rigid Conduit Locknut 1/2-Inch Cover #TOP 2
Sigma Electric ProConnex 45101 Rigid Conduit Locknut 1/2-Inch
ftb score rating icon 9.7
Sigma Electric ProConnex 45102 Rigid Conduit Locknut Cover #TOP 3
Sigma Electric ProConnex 45102 Rigid Conduit Locknut
ftb score rating icon 9.5

Top 10 Locknut Electrical Conduit Fittings

#TOP 1

Yaocom 50 Pcs Rigid Conduit Lock Nuts

Yaocom
silver
1/2 Inch
Yaocom 50 Pcs Rigid Conduit Lock Nuts Cover
Yaocom 50 Pcs Electrical Conduit Lock Nut Rigid Conduit Lock Nut Galvanized Steel Sealing Lock Nut Electrical Conduits Fittings for Rigid IMC Conduit Chemical Pipelines and Industry, Silver (1/2 Inch)

The Yaocom Lock Nuts come in a generous pack of 50, ensuring you have enough for various installations. With an outer diameter of 0.98 inches, these lock nuts fit perfectly on 1/2 inch IMC conduits. Their serrated edges help prevent loosening from vibrations, providing you with peace of mind. Made from galvanized steel, these lock nuts are strong and durable, resisting corrosion and wear. This means you can rely on them for long-lasting performance, making your installation process smoother and more efficient.

What We Like
Bulk package for convenience
Durable galvanized steel material
Serrated design prevents loosening
Versatile for various installations
#TOP 2

Sigma Electric ProConnex 45101 Rigid Conduit Locknut 1/2-Inch

45101
Gray
1/2-Inch, 20-Pack
Sigma Electric ProConnex 45101 Rigid Conduit Locknut 1/2-Inch Cover
Sigma Engineered Solutions ProConnex 45101 Rigid Conduit Locknut, 1/2-Inch, 20-Pack, Gray

The Sigma Electric ProConnex 45101 Rigid Conduit Locknut 1/2-Inch is a pack of 20 locknuts designed to securely fasten rigid conduit, IMC, and other threaded connectors to a box or enclosure. Made of durable zinc-plated steel, these locknuts are compatible with 1/2-in Rigid conduit, IMC and other threaded connectors. They are made in India and are part of the Electrical Conduit Fittings category.

What We Like
Durable zinc-plated steel construction
Compatible with 1/2-in Rigid conduit, IMC and other threaded connectors
Securely fastens conduit and connectors to a box or enclosure
#TOP 3

Sigma Electric ProConnex 45102 Rigid Conduit Locknut

45102
Gray
3/4 Inch
Sigma Electric ProConnex 45102 Rigid Conduit Locknut Cover
Sigma Engineered Solutions ProConnex 45102 Rigid Conduit Locknut, 3/4 inch, Gray, 20 Pack

The Sigma Electric ProConnex 45102 Rigid Conduit Locknut is a package of 20 locknuts that secures Rigid conduit, IMC, and other threaded connectors to a box or enclosure. It is made of zinc-plated steel and is compatible with 3/4-in Rigid conduit, IMC, and other threaded connectors. This product is manufactured in India and falls under the category of Electrical Conduit Fittings.

What We Like
Comes in a package of 20 locknuts
Made of zinc-plated steel for durability
Compatible with 3/4-in Rigid conduit, IMC, and other threaded connectors
#TOP 4

RACO 1192B20 Steel Locknut

1192B20
Gray
20-Pack
RACO 1192B20 Steel Locknut Cover
RACO 1192B20 Steel Rigid/IMC Conduit Non-UL Locknut, 1/2-Inch, 20-Pack

The RACO Steel Locknut offers robust protection for your electrical conduit systems. With its all-steel construction, you can ensure the mechanical safety of your raceway, which is essential for maintaining electrical integrity. The zinc electroplating provides excellent resistance to corrosion, making it ideal for various environments. Designed in a 1/2-inch trade size, it fits most standard applications seamlessly. However, keep in mind that this product is not UL listed, so it may not meet all regulatory requirements. Overall, this locknut is a practical choice for reliable electrical connections.

What We Like
Durable steel construction
Corrosion-resistant coating
Standard 1/2-inch size
Mechanical protection
#TOP 5

Sigma Electric ProConnex 47106 Locknuts

47106
Gray
Sigma Electric ProConnex 47106 Locknuts Cover
Sigma Engineered Solutions ProConnex 47106 Rigid Conduit Locknut 2-Inch, 2-Pack (Gray)

The Sigma Locknuts 2-Pack is designed to securely attach threaded conduits or connectors to your electrical boxes, providing a stable setup for your projects. Their versatile compatibility with 2-inch rigid conduit and IMC makes them suitable for a variety of electrical applications, giving you the flexibility you need. Installation is a breeze, allowing you to save time and effort when setting up your electrical system. Additionally, these locknuts are made from durable zinc-plated steel, ensuring they can withstand demanding environments while delivering reliable performance.

What We Like
Secure attachment
Versatile compatibility
Easy installation
Durable materials
#TOP 6

Hubbell-Raco 1002 Locknut

1002
Gray
100-Pack
Hubbell-Raco 1002 Locknut Cover
Hubbell-Raco 1002 Locknut for Rigid/IMC Conduit, 1/2" Trade Size, Steel (Pack of 100)

The RACO Locknut is a durable and reliable electrical conduit fitting that provides mechanical protection for your electrical installations. Made from high-quality steel, this locknut is designed to ensure long-lasting performance. The zinc electroplated finish offers excellent corrosion protection, making it suitable for both indoor and outdoor use. With a trade size of 1/2", it is compatible with rigid and IMC conduit. This locknut is UL listed and CSA certified, guaranteeing its safety and quality. The all-steel construction, corrosion protection, trade size compatibility, and certifications make the RACO Locknut a must-have for any electrical project.

What We Like
Durable construction
Corrosion protection
Compatible with rigid and IMC conduit
#TOP 7

Halex 61907B Locknuts

61907B
Silver
3/4"
Halex 61907B Locknuts Cover
Halex, 3/4 in. Rigid Conduit Locknuts , 61907B, 100 per pack

The Halex Locknuts are designed to securely attach rigid and intermediate metal conduit (IMC) to metal enclosures, ensuring a reliable connection for your electrical projects. Made from durable steel with a protective zinc coating, these locknuts are built to withstand various conditions, making them suitable for both indoor and outdoor use. They are also compatible with galvanized rigid conduit, providing versatility in your installations. By using these locknuts, you can enjoy peace of mind knowing that your conduits are firmly secured, enhancing the safety and durability of your electrical systems.

What We Like
Durable steel construction
Zinc plated for corrosion resistance
Indoor and outdoor compatibility
Secure conduit attachment
#TOP 8

Raco 1198B2 Locknut

1198B2
Raco 1198B2 Locknut Cover
RACO 1198B2 Locknut, 2 Inch Trade Size, Steel, Rigid/IMC Conduit, Non-UL, 2-Pack

The Raco Locknut is a pack of two all-steel fittings that provide mechanical protection for the raceway. The zinc electro plated construction ensures corrosion resistance. With a trade size of 2-1/2 inches, it fits rigid/IMC conduit. Although it is not UL listed, it is a great option for those who don't require UL certification. These locknuts are durable and long-lasting, making them ideal for industrial and commercial settings. The steel construction also guarantees that the fittings will not wear out easily, providing a secure and reliable connection for your conduit.

What We Like
Durable
Corrosion-resistant
Provides mechanical protection
#TOP 9

Sigma Electric 49106 Locknut

49106
No Color
One Size
Sigma Electric 49106 Locknut Cover
Sigma Electric 49106 Rigid Conduit Locknut, 2" (Pack of 25)

The Sigma Locknut 2 Inch is designed to securely fasten rigid conduits and threaded connectors to steel outlet boxes or metal surfaces. With a diameter of 2 inches, this steel locknut ensures a strong and reliable connection, making it ideal for various electrical applications. Its compatibility with Intermediate Metal Conduit (IMC) allows you to use it in diverse setups, enhancing your installation options. Using this locknut simplifies the process of securing your electrical connections, providing peace of mind that everything is safely in place.

What We Like
Durable steel construction
Compatible with IMC
Secures electrical connections
Easy installation
#TOP 10

Sigma Electric ProConnex 49107 Rigid Conduit Locknut

49107
Steel
No Size
Sigma Electric ProConnex 49107 Rigid Conduit Locknut Cover
Sigma Engineered Solutions ProConnex 49107 Rigid Conduit Locknut 2-1/2-Inch, 1-Pack (Gray)

The Sigma Electric Locknut is a high-quality product designed to secure rigid conduit, IMC, and other threaded connectors to a box or enclosure. Made with zinc-plated steel construction, it is compatible with 2-1/2-inch rigid conduit, IMC, and other threaded connectors. This locknut provides a reliable and secure connection, ensuring that your electrical setup remains intact. With its durable construction, it can withstand the rigors of everyday use. The Sigma Electric Locknut is easy to install, saving you time and effort. Its compatibility with different types of connectors makes it a versatile choice for various electrical applications. Trust Sigma Electric to deliver a reliable and convenient solution for your electrical needs.

What We Like
Secure and reliable connection
Durable zinc-plated steel construction
Easy to install
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is locknut and bushing?

– Used to secure an ordinary nut from working loose by locking itself when screwed down tight. – For rigid conduits. Bushing. – Zinc die-cast aluminum.

2. Can you use metal lock nut on PVC?

Use Metal Locknuts with PVC Conduit Use metal conduit locknuts with PVC conduit because plastic locknuts can strip out and break.

Editor's Notes

During our locknut electrical conduit fitting research, we found 24 locknut electrical conduit fitting products and shortlisted 10 quality products. We collected and analyzed 4,183 customer reviews through our big data system to write the locknut electrical conduit fittings list. We found that most customers choose locknut electrical conduit fittings with an average price of $10.34.

The locknut electrical conduit fittings are available for purchase. We have researched hundreds of brands and picked the top brands of locknut electrical conduit fittings, including Yaocom, Sigma Electric, RACO, Halex. The seller of top 1 product has received honest feedback from 598 consumers with an average rating of 4.9.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.