National Mfg N261-412 Zinc Rod Coupler 7/8 Inch 5 Pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N261-412 is a zinc-construction threaded rod coupler designed to join two sections of threaded rod into a continuous, load-bearing assembly. Built to UNC coarse thread standards at 7/8 inch diameter, this coupler provides a rated safe working load of 10,000 pounds. The design includes witness holes that allow installers to visually confirm both rods are fully threaded into the coupler before applying load. This part is used by electricians, plumbers, HVAC technicians, and general contractors wherever threaded rod hangers or support assemblies require extension or connection.

This coupler is suited for interior and exterior applications, making it appropriate for exposed structural environments as well as conditioned spaces. Typical use cases include suspended pipe hangers, equipment support rods, electrical conduit strut systems, and mechanical room support assemblies. Each package contains 5 couplers, allowing a technician to complete multiple connection points from a single unit of purchase. The zinc construction provides adequate corrosion resistance for most standard commercial and residential installation environments.

Key Features

• 7/8 inch UNC coarse thread for compatibility with standard threaded rod stock
• Rated safe working load of 10,000 pounds per coupler
• Witness holes allow visual confirmation that both rods are fully seated
• Zinc construction suitable for interior and exterior use
• Sold in a 5-pack quantity per package

Compatibility

Designed as an OEM-style replacement and standard-fitment coupler for 7/8 inch UNC coarse threaded rod used in mechanical, electrical, and plumbing support applications.

Installation Notes

Installation should be performed by a qualified tradesperson following applicable mechanical or structural codes for the jurisdiction. Thread both rod sections fully into the coupler and verify engagement through the witness holes before applying any load. Use appropriate thread-locking methods if vibration is a concern in the application. Do not exceed the rated safe working load of 10,000 pounds per coupler.