National Mfg N182-725 Threaded Rod Coupler 3/4-10 Zinc 15 Pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N182-725 is a zinc threaded rod coupler designed to join two sections of threaded rod into a single continuous length. Built to UNC coarse thread standards at a 3/4-10 thread size, this coupler provides a secure mechanical connection for suspended pipe hangers, structural support assemblies, and similar trade applications. Witness holes on the coupler body allow the installer to visually confirm that both rod ends are fully threaded through before finalizing the connection. Each package contains 15 couplers, making it practical for multi-point installations.

This coupler is used in commercial and residential construction where threaded rod is required to span lengths greater than standard stock rod allows. Typical applications include suspended ceiling systems, HVAC duct hangers, pipe support frameworks, and mechanical room strut assemblies. Licensed plumbers, pipefitters, HVAC mechanics, and general contractors regularly use threaded rod couplers in both new construction and retrofit work. The zinc finish provides basic corrosion resistance suitable for interior dry and mildly humid environments.

Key Features

• 3/4-10 UNC coarse thread size for broad compatibility with standard threaded rod stock
• Witness holes allow visual confirmation that rod ends are fully seated before tensioning
• Zinc material provides corrosion resistance for interior mechanical applications
• Sold in a 15-count package to support multi-hanger or multi-point installations
• Designed to connect two pieces of threaded rod end-to-end without reducing thread engagement

Compatibility

Designed as an OEM-style replacement and general-use coupler for standard 3/4-10 UNC threaded rod used in suspended mechanical, plumbing, and HVAC support applications.

Installation Notes

Installation is typically performed by licensed plumbers, pipefitters, or HVAC mechanics working with suspended support systems. Ensure that both rod ends are threaded fully through the coupler until visible at the witness holes before applying load. Follow applicable building codes and manufacturer load ratings when sizing rod and coupler assemblies for structural support. Do not use in applications that exceed the material or thread rating of zinc-body couplers.