Coupling Nuts

Coupling nuts, also referred to as extension nuts, are different from other nuts because they are long internally threaded nuts designed to join two male threads together through providing an extended connection. The most common use for these fasteners is to connect threaded rods, but they can join any male-threaded fastener, rod, pipe, etc. They are simple fasteners with a straightforward design, making them versatile and easy to use.  

Huyett offers coupling nuts in stainless steel, carbon steel, and brass with plain or zinc clear finishes. They are also available in a wide range of overall lengths, thread diameters, and thread size and pitch.