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Zinc-plated steel coupling nut, 1-3/4 inches long

MIDWEST FASTENER CORP

MIDWEST FASTENER CORP 64507 Coupling Nut hardware

SKU CH-WJ90-G5ZPT

A zinc-plated steel coupling nut with 1/2"-13 threads joins two threaded rods end to end

  • Product typeNuts
  • Connects threaded rods end to end
  • 1/2"-13 thread fits standard rods
  • Steel construction provides strength
  • Zinc plating resists corrosion
  • 1-3/4 in length spans connections

MIDWEST FASTENER 64507 Coupling Nut

This coupling nut joins two threaded rods end to end using its internally tapped design that meets in the middle. It serves maintenance, fabrication and assembly tasks where extending rod length is required. The steel construction with zinc plating provides corrosion resistance for indoor and outdoor use. It is a straightforward hardware component for professional and DIY applications.

Upgrading from standard hex nuts

A standard hex nut only accepts a rod from one side and cannot connect two pieces in line. This coupling nut replaces that limitation when a continuous threaded connection is needed across a gap. The jump is worth it whenever a project demands joining two male-threaded rods without welding or custom machining. It eliminates the need for improvised spacers or adapters in structural or mechanical builds.

Limits of the threaded rod interface

The connection relies entirely on the engagement length of each rod inside the nut body. If the rods are undersized, damaged or not fully threaded, the joint will not reach full strength. The zinc coating protects the nut itself but does not prevent galvanic action between dissimilar rod materials. Buyers who need a through-hole fastener or a locking mechanism will find this design does not meet those needs.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 63% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameMIDWEST FASTENER
Product typeNuts

Questions about this item

What thread size does the 64507 coupling nut use to join two rods?

The nut is tapped 1/2"-13 on both ends so two rods with matching threads meet in the centre.

How do you install the coupling nut without cross-threading the rods?

Start each rod by hand for several turns before using a wrench; the threads meet in the middle, so both sides must engage evenly.

Will the zinc plating on this coupling nut need recoating after outdoor exposure?

The zinc finish resists corrosion under normal conditions; inspect periodically and apply a touch-up coating if the surface shows white rust.

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