National Mfg N261-420 Zinc Rod Coupler 1 Inch 5 Pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N261-420 is a zinc threaded rod coupler designed to join two pieces of threaded rod end-to-end in a single inline connection. Built to UNC coarse thread standards, this 1-inch coupler carries a safe working load of 12,000 lbs, making it suitable for structural and support applications in both interior and exterior environments. The zinc construction provides corrosion resistance adequate for exposed installations. Each package contains 5 couplers. This hardware is commonly installed by commercial contractors, electricians, plumbers, and HVAC mechanics when hanging threaded rod support assemblies for pipe, conduit, duct, and equipment.

This coupler is used in suspended ceiling grid work, pipe hanger assemblies, electrical conduit support systems, HVAC duct suspension, and general structural rod-splicing applications. It is equally suited for residential and light commercial construction. The UNC coarse thread pattern is the standard used across most domestic threaded rod stock, making this coupler compatible with common field-cut or pre-cut rod sections. The 5-piece package count is practical for contractors running multiple hangers on a single job.

Key Features

• Safe working load of 12,000 lbs for reliable load-bearing performance
• UNC coarse thread sizing matches standard domestic threaded rod stock
• Zinc construction suitable for both interior and exterior use
• 1-inch thread size for heavy-duty support rod applications
• Packaged in quantities of 5 per unit for multi-point hanger runs

Compatibility

Designed for use with 1-inch UNC coarse thread threaded rod in standard interior and exterior suspension and support applications.

Installation Notes

Installation is performed by hand-threading the coupler onto each rod end until both rods are fully engaged. Verify complete thread engagement before applying load — larger couplers in this series include witness holes for this purpose; confirm rod ends are fully seated. Use appropriate thread-locking methods where vibration or dynamic loads are present, per applicable building or mechanical codes. Do not exceed the rated safe working load of 12,000 lbs.