Best Locknut Electrical Conduit Fittings of 2026

Harry Stack Avatar
Harry Stack
Last Updated: Jan 9, 2026

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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

Sigma Electric ProConnex 45102 Rigid Conduit Locknut Cover #TOP 1
Sigma Electric ProConnex 45102 Rigid Conduit Locknut
ftb score rating icon 9.8
AIRIC 12 Pcs 1/2" NPT Waterproof Nylon Cable Glands Cover #TOP 2
AIRIC 12 Pcs 1/2" NPT Waterproof Nylon Cable Glands
ftb score rating icon 9.7
Yaocom 50 Pcs Rigid Conduit Lock Nuts Cover #TOP 3
Yaocom 50 Pcs Rigid Conduit Lock Nuts
ftb score rating icon 9.5

Top 10 Locknut Electrical Conduit Fittings

#TOP 1

Sigma Electric ProConnex 45102 Rigid Conduit Locknut

45102
Gray
3/4-in
Sigma Electric ProConnex 45102 Rigid Conduit Locknut Cover
SIGMA ENGINEERED SOLUTIONS ProConnex 3/4" Rigid Conduit Locknut, 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 2

AIRIC 12 Pcs 1/2" NPT Waterproof Nylon Cable Glands

NPT1/2(12P)
BLACK
NPT 1/2"
AIRIC 12 Pcs 1/2" NPT Waterproof Nylon Cable Glands Cover
AIRIC 12 Pcs 1/2" NPT Cable Glands Nylon PA66, IP68 Waterproof Adjustable Power Strain Relief Cord Grips, Junction Box Wire Gland Grip Connectors with Gaskets and Locknut, Black

The AIRIC 1/2" NPT Cable Glands offer a pack of 12 durable nylon connectors designed to fit wires between 6-12 mm in diameter. These cable glands are perfect for use in electrical, industrial, and automotive settings, giving you versatile options for your wiring needs. Made from high-quality nylon PA66, they resist heat, chemicals, and flames, ensuring a long-lasting and safe connection. Plus, with an IP68 waterproof rating and included gaskets, these glands provide a reliable seal that protects your cables even underwater. Installation is simple—you just insert the cable and tighten the nuts to secure it firmly without extra disassembly.

What We Like
Durable nylon construction
Fits 6-12 mm cables
IP68 waterproof rating
Easy installation
#TOP 3

Yaocom 50 Pcs Rigid Conduit Lock Nuts

silver
1/2 Inch
Yaocom 50 Pcs Rigid Conduit Lock Nuts Cover
Yaocom 50 Pcs Electrical Conduit Lock Nut Rigid Lock Nut Galvanized Steel Sealing Electrical Conduits Fittings for Rigid IMC 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 4

Halex 75105B Non-Metallic Push-In Connector

75105B
Gray
3/8" (1/2" KO)
Halex 75105B Non-Metallic Push-In Connector Cover
Halex – 3/8 Inch – ½ Inch Knockout Non-Metallic Push in Connector – 75105B – 100 Per Pack – Gray

The Halex Push-In Connector is a handy choice for connecting non-metallic cables to metal boxes or enclosures. Its push-in design lets you install it quickly without extra tools, saving you time and effort. Made from durable nylon-plastic, this connector ensures a strong and reliable connection that holds up well in everyday use and different environments. Plus, with 100 pieces in a pack, you’ll have plenty of connectors for big projects or to keep on hand for future needs. This connector is a convenient, dependable solution for both commercial and home electrical work.

What We Like
Easy push-in installation
Durable nylon-plastic build
Works with various conduit sizes
Large 100-piece pack
#TOP 5

PENGLIN 3/4" NPT Nylon Cable Glands (10-Pack)

PENGLIN_PL39,40,41,42
Black
3/4 Inch (10-Pack)
PENGLIN 3/4" NPT Nylon Cable Glands (10-Pack) Cover
PENGLIN Cable Glands 3/4" NPT Nylon Cable Connector, Strain Relief Cord Connector, IP68 Waterproof Adjustable Locknut(3/4 Inch (10-Pack))

The PENGLIN Nylon Cable Glands make securing your cables easier and safer. These connectors provide excellent strain relief, which helps protect your cables from damage caused by bending or pulling. They are designed to keep out dust, dirt, and liquids, making them perfect for tough outdoor or industrial settings. With an IP68 waterproof rating, you can trust these glands to keep your cables dry and functioning in harsh conditions. Installation is simple—just push the cable through and tighten the locknut, fitting cables between 9 and 15 mm in diameter. Made from durable, flame-retardant nylon, these glands are built to last and resist aging and UV damage.

What We Like
Strong strain relief
IP68 waterproof rating
Easy installation
Durable nylon material
Flame retardant and UV resistant
#TOP 6

Sigma Engineered Solutions ProConnex 44721 Nm/Se One-Hole Midget Strap 1/4-Inch Conduit Fitting, 50-Pack, Gray

44721
Gray
1/4-in
Sigma Engineered Solutions ProConnex 44721 Nm/Se One-Hole Midget Strap 1/4-Inch Conduit Fitting, 50-Pack, Gray Cover
Sigma Engineered Solutions ProConnex 44721 One-Hole Midget Strap, 1/4-in

The Sigma Engineered Solutions ProConnex 44721 Nm/Se One-Hole Midget Strap 1/4-Inch Conduit Fitting is a zinc-plated steel construction that securely fastens bare solid copper wire. It comes in 1/4-in trade size and is perfect for electrical conduit fittings. The fitting is manufactured by Sigma Electric and sold in a 50-pack, making it an ideal choice for both personal and professional use.

What We Like
Securely fastens bare solid copper wire
Zinc-plated steel construction
Comes in 1/4-in trade size
#TOP 7

Raco 1198B2 Locknut

1198B2
Silver
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 8

HDHAODA Conduit Connectors

NMLT-1050
Grey
10 Pack
HDHAODA Conduit Connectors Cover
HDHAODA Conduit Connectors, 1/2 Inch Liquid Tight Connector NPT Non-Metallic for PVC Electrical Flexible Conduit Fittings, 180 Degree Straight, UL Listed for Home Outdoor Tubes Tools, Grey (10-Pack)

HDHAODA Connectors are durable and quick to install non-metallic PVC conduit fittings. Made of impact-resistant nylon 6, these connectors are rust-resistant, resistant to oil and mild acids, and can withstand strong tensile forces. With a 94V-2 flame retardant grade and 125 °C temperature index, they ensure safety. The connectors can be easily attached to the conduit, tube, or electrical box without using any tools. Suitable for various applications such as construction sites, machinery, household equipment, and outdoor lighting equipment. The package includes 10 connectors with a 180-degree straight design. With UL listing, you can trust the superior quality of HDHAODA Connectors.

What We Like
Durable Material
Quick Installation
Wide Applications
#TOP 9

Alices Nylon Waterproof Cable Glands 25 Pack

Alices
FZ0083
Black
PG 7/9/11/13.5/16
Alices Nylon Waterproof Cable Glands 25 Pack Cover
Cable Glands - 25 Pack Plastic Waterproof 3.5-13mm Nylon Cable Glands Joints Wire Protectors, PG 7/9/11/13.5/16, for Home/Garden/Outdoor Lighting Cable Black

The Alices Cable Glands Pack includes 25 nylon cable protectors in various sizes, so you have the right fit for different cable thicknesses. These glands cover cable ranges from 3 to 14 mm, making them versatile for many wiring needs. Made from durable nylon plastic, they resist acids, alkalis, alcohol, heat, and flames, ensuring your cables stay safe in tough environments. Installation is simple—you can insert cables directly without removing terminals, then tighten the gland to secure and seal your wires. This makes it easy to protect cables in home or outdoor lighting setups, keeping them waterproof and dust-proof.

What We Like
Variety of sizes
Durable nylon material
Heat and chemical resistant
Easy installation
Waterproof and dust-proof
#TOP 10

Aandxmok PG7 Waterproof Cable Gland 20 Pack

A7_PG7_20P
Black
PG7 (20 Pcs)
Aandxmok PG7 Waterproof Cable Gland 20 Pack Cover
Aandxmok 20 Pcs Waterproof Cable Gland, PG7 Thread(3-6.5mm), Made of PA66 Material,waterproof wire grommet Strain Relief Cord Connectors,Suitable for Various Electrical Installations

The Aandxmok PG7 Cable Glands provide reliable waterproof protection, perfect for outdoor and marine use, keeping your cables safe from moisture. These cable glands are versatile, allowing you to easily pass cables through waterproof enclosures or make secure connections for various electronics. Installation is simple and tool-free, so you can quickly secure your cables with the included locknut. Plus, they fit cables sized between 2mm and 6mm, covering many common wire types. With the Aandxmok PG7 Cable Glands, you get a practical solution to protect and organize your cables efficiently.

What We Like
Waterproof protection
Versatile applications
Easy installation
Fits various cable sizes
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 9,268 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 $7.99.

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 Sigma Engineered Solutions, AIRIC, Yaocom, Halex, PENGLIN. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

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.