Hex couplers are used to connect two pieces of threaded material. Hex and heavy hex couplers are threaded right hand. If a right hand-left hand coupler is needed, consider using a sleeve nut. Coupling nuts, also known as extension nuts, are elongated internally threaded nuts used to join two male threads. Coupling nuts are often used for joining threaded rods or hanger bolts in a variety of applications that require extending threaded rod or attaching like items. G.L. Huyett’s online selection offers coupling nuts from a range of lengths and thread sizes. Find coupling nuts for your next project by browsing our catalog.

Available in stainless steel, carbon steel, and brass
Also available in plain and zinc clear finishes
Common hex design allows for simple tightening and loosing with a standard wrench
Diameters: 1/2" – 1"