Collection: Coupling Nuts

Coupling nuts, also called connector nuts or extension nuts, are long hex nuts threaded right through. They join two lengths of threaded rod or studding, or extend a rod to the length needed.

Our range runs from M5 to M20 and 18 mm to 50 mm long, zinc plated or in A2 stainless steel, with the spanner size shown on each listing.

Screw each rod in to the middle of the nut so both carry the load evenly. For inch sizes, see Imperial Coupling Nuts.