SCHNAP Logo

Making Trade Life Easy!

Locknuts

At SCHNAP, our Locknuts range offers tradies and contractors reliable, top-quality fittings for every electrical setup. From durable nylon and machined brass to marine-grade 316 stainless steel, we stock sizes from 12mm to 63mm to suit any conduit application. Whether you're after Clipsal-compatible gear or Tradepro's corrosion-resistant solutions, each locknut is built for secure fastening and long-term performance—even in tough Aussie conditions.

Buy online and save with trade discounts across the range. Check live stock levels across Australia and enjoy fast, reliable delivery to your site or shed.

$0.30 $0.20
16mm grey lockring with durable construction and secure fit—ideal for electrical and plumbing applications. Built for easy installation, providing reliable performance in various settings.
+

$0.30 $0.20
20mm grey lockring with durable construction and easy installation—ideal for securing electrical conduits. Built for reliability, with a sleek design for professional applications.
+

$0.70 $0.50
40mm grey lockring with durable construction and easy installation—ideal for securing electrical conduits. Built for reliability, with a sleek design for professional applications.
+

$5.80 $4.70
Cable management locknut with 20mm machined brass and steel couplings—ideal for secure electrical installations. Built for durability, with toxic heavy metal-free construction.
+

$10.70 $8.60
Cable management locknut with machined brass construction and steel couplings—ideal for secure electrical installations. Built for durability and compatibility with the Clipsal range, ensuring reliable performance.
+

$13.80 $11.00
Cable management locknut with 40mm machined brass construction—ideal for secure electrical installations. Built for compatibility with Clipsal products, ensuring durability and compliance with EU RoHS standards.
+

$5.50 $4.40
Cable management lock ring with 20mm machined brass construction—ideal for residential and commercial installations. Built for durability and compatibility with the Clipsal range, ensuring reliable cable organization.
+

$10.50 $8.40
Cable management locknut with 32mm steel construction and machined brass for durability—ideal for secure electrical installations. Built for compliance with EU and China RoHS regulations, ensuring safety and environmental benefits.
+

$5.00 $4.00
Cable management locknut with 20mm diameter and machined brass construction—ideal for secure electrical installations. Built for durability, with steel couplings for enhanced strength.
+

$1.70 $1.30
Hexagonal lock nut with durable nylon construction and 16mm size—ideal for cable management in residential and commercial electrical installations. Built for secure fastening, with a black finish for a sleek look.
+

$1.60 $1.30
Hexagonal lock nut with durable nylon construction and 20mm size—ideal for cable management in residential and commercial installations. Built for secure fastening, with a sleek black finish.
+

$2.00 $1.60
Cable management hexagonal lock nut with 25mm size and durable nylon material—ideal for residential and commercial electrical installations. Built for secure fastening, with a non-toxic, eco-friendly design.
+

$38.60 $31.00
Pad lock device designed for MAX4 circuit breakers, switches, and RCDs, accommodating padlocks with shafts up to 6mm. Ideal for secure circuit protection, compliant with EU RoHS directive for reduced environmental impact.
+

$5.10 $4.10
Cable management lock nut with 32mm hexagonal design and durable nylon material—ideal for residential and commercial electrical installations. Built for secure fastening, with compliance to Australian standards.
+

$7.70 $6.20
Cable management lock nut with hexagonal design and durable nylon material—ideal for residential and commercial electrical installations. Built for secure fastening, with eco-friendly packaging.
+

$27.00 $22.30
20mm lockring made from durable 316 stainless steel, offering excellent corrosion resistance and high strength—ideal for marine, industrial, and plumbing applications. Built for harsh environments, it ensures long-lasting performance and reliability.
+

$30.90 $25.50
This 25mm lockring made from durable 316 stainless steel is ideal for marine and industrial piping systems. Designed for secure locking of threaded connections, it offers excellent corrosion resistance, making it perfect for corrosive environments.
+

$58.90 $48.60
32mm lockring made from 316 stainless steel, offering high corrosion resistance and durability—ideal for industrial and marine applications. Built for reliable fastening in harsh environments, ensuring long-term performance.
+

$104.20 $86.10
50mm lockring made from 316 stainless steel, offering superior corrosion resistance and a reliable locking mechanism—ideal for marine and industrial piping systems. Built for durability in corrosive environments, it ensures long-lasting performance and safety.
+

$27.90 $23.00
16mm locknut made from high-grade 316 stainless steel, offering superior corrosion resistance and a reliable locking mechanism—ideal for industrial and marine applications. Built for secure fastening in mechanical assemblies, ensuring durability and longevity.
+

$28.10 $23.20
20mm locknut made from 316 stainless steel, offering superior corrosion resistance and a reliable locking mechanism—ideal for industrial and plumbing applications. Built for marine environments, it ensures durability and longevity in demanding conditions.
+

$46.00 $38.00
25mm locknut made from durable 316 stainless steel, offering high strength and corrosion resistance—ideal for industrial and marine applications. Built for reliable fastening in harsh environments, ensuring safety and compliance.
+

$54.90 $45.40
32mm locknut made from 316 stainless steel, offering high corrosion resistance—ideal for industrial and marine applications. Built for reliable fittings, with a durable locking mechanism ensuring safety and longevity.
+

$140.20 $115.80
40mm locknut made from 316 stainless steel, offering superior corrosion resistance and a reliable locking mechanism—ideal for industrial and marine applications. Built for secure fastening, this durable locknut ensures longevity in corrosive environments.
+

$158.40 $130.90
50mm locknut made from high-grade 316 stainless steel, offering superior corrosion resistance—ideal for industrial and marine applications. Built for secure fastening in mechanical assemblies, it features a reliable locking mechanism to prevent loosening.
+

$186.40 $154.00
This 63mm locknut made from durable 316 stainless steel is ideal for industrial and marine applications. With high strength and corrosion resistance, it ensures secure fastening in harsh environments, making it perfect for piping and plumbing systems.
+

$1.80 $1.50
12mm nickel plated brass locknut with a 5mm thread depth—ideal for securing electrical conduit fittings. Built for industrial and commercial use, it offers corrosion resistance and durability for long-lasting performance.
+

$2.10 $1.80
16mm nickel plated brass locknut designed for secure fastening in electrical conduit fittings. Ideal for industrial and commercial wiring projects, it offers corrosion resistance and durability, ensuring compliance with electrical safety standards.
+

$2.60 $2.20
20mm nickel plated brass locknut with a 5mm thread depth—ideal for securing electrical conduits in various installations. Built for industrial and commercial use, it offers corrosion resistance for long-lasting performance.
+

$3.10 $2.60
25mm nickel plated brass locknut with 5mm thread depth—ideal for securing electrical conduit in various installations. Built for industrial and commercial use, it offers corrosion resistance and durability for long-lasting performance.
+

$5.10 $4.20
32mm nickel plated brass locknut with a 5mm thread depth—ideal for securing electrical conduit in various installations. Built for electricians, it offers corrosion resistance and durability for long-lasting performance.
+

$8.90 $7.30
40mm nickel plated brass locknut with 5mm thickness—ideal for securing conduit in electrical installations. Built for industrial and commercial wiring projects, offering durable corrosion resistance for long-lasting performance.
+

$10.10 $8.40
50mm nickel plated brass locknut with a 5mm thread size—ideal for securing conduit in electrical installations. Built for industrial and commercial wiring projects, it offers corrosion resistance and durability for long-lasting performance.
+

$3.40 $2.80
20mm electro galvanised lockring designed for securing galvanised fittings—ideal for plumbing and industrial applications. Built for durability with corrosion resistance, ensuring long-lasting performance in both residential and commercial installations.
+

$13.30 $11.00
50mm electro galvanised lockring designed for secure pipe fittings, offering corrosion resistance and durability—ideal for plumbing and industrial applications. Built for tradespeople, it ensures reliable connections in galvanised steel piping systems.
+

Lock It In: A Sparky's Guide to Conduit Locknuts

A conduit fitting is only as secure as the nut that's holding it tight. A loose connection that vibrates over time isn't just unprofessional—it's a future point of failure. The humble electrical locknut is the essential component that guarantees a rock-solid, vibration-proof fastening for your conduit entries into switchboards, junction boxes, and enclosures.

At SCHNAP, our Locknuts range offers Aussie tradies and contractors reliable, top-quality fittings for every electrical setup, from a standard domestic fit-out to the toughest industrial site.

Choosing the Right Locknut Material for the Job

Selecting the right material for the environment is key to a long-lasting, compliant installation.

  • Durable Nylon Locknuts: The versatile and cost-effective choice for securing PVC fittings into PVC or plastic enclosures. They are naturally corrosion-free and easy to work with, making them a staple in any sparky's kit.
  • Machined Brass Locknuts: The industry standard for a secure mechanical and electrical earth continuity bond. When you're connecting metal conduit fittings to a steel switchboard or enclosure, a brass locknut is the professional's choice. Our range includes Clipsal-compatible gear you can rely on.
  • Marine-Grade 316 Stainless Steel Locknuts: For the toughest Aussie conditions, you need the ultimate in corrosion resistance. For installations in coastal, marine, or highly corrosive industrial environments (like food processing plants), 316 stainless steel locknuts offer unparalleled long-term performance and prevent rust.

A Size for Every Conduit

From a small 12mm lighting circuit right up to a heavy-duty 63mm sub-main, we've got the right size locknut to suit any standard Australian conduit application.

Trusted Brands for a Secure Fastening

A secure connection starts with quality parts. We stock a huge range of locknuts from the brands that Aussie sparkies trust on their jobs every day, including Tradepro's corrosion-resistant solutions and other industry leaders like Matelec.

Why Sparkies Choose SCHNAP

Don't let a cheap, low-quality nut compromise your professional installation.

  • A complete range of nylon, brass, and 316 stainless steel locknuts.
  • Sizes from 12mm to 63mm to suit any conduit application.
  • Trusted brands built for tough Aussie conditions.
  • Fast delivery and competitive trade pricing.

For the rock-solid locknuts you need to keep your connections tight and your installs compliant, trust SCHNAP to have you covered.

Need locknuts at the best prices and good quality? Shop now at Schnap