National Mfg N179-432 Zinc Threaded Rod 3/8-16 X 24 in 5 Pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N179-432 is a zinc-plated threaded rod designed for use in fastening, hanging, and structural support applications across mechanical and construction trades. Measuring 3/8-16 inches in diameter by 24 inches in length, this rod features UNC coarse threads and meets ASTM A37 Grade A standards with a minimum tensile strength of 6 KSI. The zinc finish provides corrosion resistance for both indoor and light-duty outdoor installations. Each package contains 5 rods, making it practical for multi-point installations or jobs requiring consistent hardware.

This threaded rod is suited for residential and light commercial applications where HVAC, plumbing, and electrical systems require threaded fasteners for hanging pipe, duct work, conduit, or equipment supports. The rod can be drilled, cut, heated, and shaped on the job site, giving installers flexibility when working within tight framing or irregular structural conditions. It is commonly used by HVAC technicians, plumbers, and electricians for trapeze hangers, threaded inserts, and mechanical anchoring assemblies.

Key Features

• 3/8-16 UNC coarse thread profile for broad compatibility with standard nuts and couplings
• 24-inch length with field-cuttable, drillable, and shapeable zinc construction
• Meets ASTM A37 Grade A with minimum tensile strength of 6 KSI
• Zinc plating provides corrosion resistance for general-purpose mechanical installations
• Sold in a 5-pack for multi-point or multi-unit service calls

Compatibility

Designed as a general-purpose UNC coarse-thread fastener rod for use with standard 3/8-16 threaded nuts, couplers, and hardware in HVAC, plumbing, and electrical support applications.

Installation Notes

This rod is typically installed by HVAC technicians, plumbers, or electricians in compliance with applicable mechanical and building codes. Cut to length using a hacksaw or angle grinder, and deburr cut ends before threading hardware. Ensure structural anchors or inserts are rated for the intended load before hanging equipment or pipe. Follow NEC, IPC, or IFGC guidelines as applicable to the trade and installation type.