National Mfg N825-011 Galvanized Threaded Rod 5/8-11x36

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N825-011 is a galvanized threaded rod used for hanging, connecting, clamping, and supporting components in plumbing, heating, electrical, and marine applications. The rod measures 5/8-11 inches in diameter and 36 inches in length with UNC coarse threads running the full length. The hot-dip galvanized finish meets ASTM A153 for corrosion resistance, making it suitable for damp or corrosive environments. The steel meets ASTM A307 Grade A. It can be drilled, cut, heated, or shaped in the field to fit a wide range of install scenarios. Sold in a package of 2 rods.

This threaded rod is a standard fastening component used by plumbers, electricians, pipefitters, and HVAC mechanics in both residential and commercial settings. Common applications include pipe hangers, strut support systems, equipment mounting, and structural connections. The 5/8-11 UNC thread pattern is compatible with standard hex nuts, couplings, and threaded inserts widely used in trade work. Its corrosion-resistant finish makes it a practical choice for mechanical rooms, exposed pipe runs, and outdoor or marine project environments.

Key Features

• 5/8-11 UNC coarse thread pattern, compatible with standard nuts and couplings
• 36-inch length — field-cuttable to required dimensions
• Galvanized finish meets ASTM A153 for corrosion resistance
• Steel meets ASTM A307 Grade A structural fastener standard
• Can be drilled, cut, heated, and shaped on the job
• Sold as a package of 2 rods

Compatibility

Designed for use in plumbing, heating, electrical, and marine applications. Fits standard 5/8-11 UNC threaded hardware including hex nuts, rod couplings, beam clamps, and pipe hanger assemblies commonly used in trade installations.

Installation Notes

Installation is typically performed by licensed plumbers, electricians, or HVAC mechanics depending on the application. Shut off and de-energize any systems in the work area before installing overhead supports or hangers. Use appropriate thread-cutting tools and personal protective equipment when cutting or shaping the rod on site. Follow applicable codes including the IPC, IFGC, and NEC for hanger spacing and support requirements specific to the system being supported.