National Hardware 1-8 Coupling Nut

The National Hardware 1-8 Coupling Nut is engineered to securely connect two pieces of threaded rod in structural, mechanical, and hanging applications. Manufactured from durable steel with a protective zinc finish, it delivers reliable strength and corrosion resistance for demanding fastening tasks. Equipped with integrated witness holes, this coupler allows for quick visual verification that both threaded rods are engaged fully. It is an essential component for construction, framing, and heavy-duty hardware setups.