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101017691 - 5/16-18 x 1-1/4 Stainless Steel Coupling Nut

Packaging: 1 of each
$0.92/ea $0.77/1 of each only $0.77/eaSave 16%

Usually ships within 3-5 business days

OVERVIEW

Reliable Stainless Hardware for Shop Repairs

When you are in the middle of a fabrication job or fixing up a piece of shop equipment, having the right hardware on hand is half the battle. This 5/16"-18 x 1-1/4" Stainless Steel Coupling Nut is the perfect solution for extending threaded rods, connecting studs, or acting as a robust spacer in your assemblies. Made from tough 18-8 stainless steel, it stands up to the humidity, fumes, and grime of the welding shop without rusting out like standard zinc-plated hardware.

Why struggle with mismatched lengths? Use this coupler to join two shorter rods to get the reach you need. The 1-1/4 inch length gives you plenty of grab on both sides, ensuring a connection that won't wiggle loose. It fits any standard 5/16"-18 bolt or rod, making it a versatile addition to your spare parts bin. Whether you are building custom jigs, hanging lights, or repairing a machine guard, this coupling nut gives you a professional, permanent hold.

Don't let cheap hardware fail on your finished projects. The stainless construction not only looks great but ensures that your work withstands the elements if it heads outdoors. Keep a few of these high-quality couplers in your toolbox so you are never stuck improvising a connection when it counts.

Additional Information
Material:18-8 Stainless Steel
Thread Size:5/16"-18
Length:1.25 in
Item:Miscellaneous
Packaging Description:1 per each
Brand:N/A

INCLUDED

  • 1x Stainless Steel Coupling Nut (5/16"-18 x 1-1/4")

APPLICATIONS

  • Joining threaded rods in suspension systems
  • Extending bolts or studs for machinery repair
  • Acting as a spacer or standoff in assemblies
  • General fabrication and jig building
  • Outdoor or marine environment fastening

FAQ

It is made from 18-8 Stainless Steel, which is chemically equivalent to 304 Stainless Steel, offering excellent corrosion resistance.

The thread is 5/16"-18, which is a standard coarse (UNC) thread.

The total length of the coupling nut is 1-1/4 inches.

Yes, that is the primary application. It allows you to join two 5/16"-18 threaded rods end-to-end.

Because it is made of 18-8 stainless steel, it is highly resistant to rust and suitable for most outdoor applications.

You will typically need a standard wrench or socket that matches the hex size (usually 1/2" for this thread size, though it can vary).