National Mfg N825-008 Threaded Rod 1/2-13 X 72 in Galvanized

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N825-008 is a galvanized threaded rod measuring 1/2 inch in diameter with a 13 TPI thread pitch and 72 inches in overall length. It is used for hanging, connecting, clamping, and supporting components in plumbing, heating, and electrical installations. The rod carries a Weatherguard Protection coating that resists corrosion in both interior and exterior environments. It meets ASTM A307 Grade A and ASTM A153 standards, making it a code-appropriate fastener for trade applications. The rod can be drilled, cut, heated, or shaped on the job site, giving installers flexibility when working with non-standard dimensions or custom configurations.

This threaded rod is suited for residential and light commercial applications across plumbing, HVAC, and electrical trades. Common uses include pipe hanging, equipment support framing, unistrut assemblies, and structural clamping where a continuous-thread fastener is required. The galvanized finish makes it appropriate for both indoor and outdoor installations, including locations with exposure to moisture or weather.

Key Features

• 1/2 inch diameter, 13 TPI thread pitch, 72 inches length for full-length rod applications
• Weatherguard Protection galvanized coating resists corrosion in interior and exterior environments
• Meets ASTM A307 Grade A and ASTM A153 standards for code-compliant installations
• Field-workable: can be drilled, cut, heated, or shaped on site
• Suitable for plumbing, HVAC, and electrical support and hanging applications

Compatibility

Designed as an OEM-style threaded rod for use with standard 1/2 inch-13 UNC threaded nuts, couplings, hangers, and anchors common to plumbing, heating, and electrical support assemblies.

Installation Notes

Installation is typically performed by licensed plumbers, electricians, or HVAC mechanics depending on the application. Cut the rod to the required length using an appropriate metal-cutting tool, and dress the cut end to restore clean threads before assembly. Support spacing and hanger sizing should comply with applicable codes such as the IPC, IFGC, or NEC as relevant to the trade. Wear appropriate PPE when cutting or shaping the rod on site.