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Hillman 180654 Coupling Nut, 1/2-Inch by 20-Inch, 25-Pack

Free shipping on orders over $29.99

$18.90

$ 7 .99 $7.99

In Stock

About this item

  • For industrial applications
  • Use with threaded rod
  • Zinc Plated
  • Product Dimension: 4.18" x 4.18" x 3.31"


Product Description

Coupling Nuts are long nuts used to connect pieces of threaded rod or other male threaded fasteners. They are similar to hex nuts with extreme height measurements giving it length. The coupling nut joins two pieces of threaded rod.

From the Manufacturer

Coupling Nuts are long nuts used to connect pieces of threaded rod or other male threaded fasteners. They are similar to hex nuts with extreme height measurements giving it length. The coupling nut joins two pieces of threaded rod.


L Bergen
Reviewed in the United States on March 2, 2025
It’s a coupling nut. What do you expect?
Joe B.
Reviewed in the United States on July 30, 2024
I bought these as extensions for 10' 1/2" all thread. These extensions will not work on this all thread. All thread is 13 threads per inch. These are 20 per inch.
Santa Jerry
Reviewed in the United States on September 30, 2023
In the past, I must be getting old, the wrench size used for a 1/2" coupler nut was 3/4". Somewhere in the past several years the standard reduced material needed and now the wrench size is 11/16".I am sure the integrity of the product is still sound, but I was trying to match up and replace a part from a much older application.Well stocked for the future.