Hex Rod Coupling Nuts - (USS) Coarse Thread

Hex rod coupling nuts in USS coarse thread are long nuts threaded all the way through. They join two pieces of threaded rod, or connect threaded rod to hanger bolts and anchors, end to end. Most sizes are zinc plated, and the largest sizes come plain. Each item lists thread x width across flats x length, so you can match both the rod and the wrench size. We stock sizes from 4-40 to 1-1/2"-6, with two lengths in several sizes.

Hex Rod Coupling Nuts - (USS) Coarse Thread | The Nutty Company, Inc.

Specifications

Thread: USS coarse (UNC) / machine screw
Sizes: 4-40 through 1-1/2"-6
Listing format: thread x width across flats x length (for example 3/8"-16 x 1/2" x 1-1/8")
Finish: zinc plated; 1-1/8"-7, 1-1/4"-7 (1-5/8" hex) and 1-1/2"-6 plain

Common Uses

Extending threaded rod for hangers and supports
Connecting threaded rod to hanger bolts
Pipe, duct and cable tray hanging systems

FAQ

How far should the rod go into a coupling nut?
Thread each rod in about halfway, so both rods have equal engagement. A mark on each rod at half the coupling length makes this easy to check.

Do you have coupling nuts that join two different rod sizes?
Yes. Reducer coupling nuts join two different rod sizes, for example 1/2"-13 to 3/8"-16.

Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.