National Hardware 1/2-13 x 1-3/4 in. Coupling Nut

The National Hardware 1/2-13 x 1-3/4 in. Coupling Nut is designed to securely join two pieces of threaded rod together. Ideal for framing, hanging fixtures, and structural fastening applications, this coupler provides a strong mechanical connection across threaded assemblies. Constructed from high-grade steel with a protective zinc-plated finish, this coupling nut delivers dependable durability and corrosion resistance. Precision-machined UNC coarse internal threads ensure smooth engagement and optimal holding power in demanding hardware installations.