National Mfg N825-003 Galvanized Threaded Rod 3/8-16x36

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N825-003 is a galvanized threaded rod measuring 3/8-16 inches in diameter by 36 inches in length, featuring UNC coarse threads along its full length. This rod is built for hanging, connecting, clamping, and supporting components across plumbing, heating, electrical, and marine installations. The hot-dip galvanized finish meets ASTM A153, providing corrosion resistance in demanding environments. It also meets ASTM A307 Grade A standards for mechanical fastener strength. The rod can be drilled, cut, heated, or shaped on the job, giving installers flexibility when field-fitting is required. Sold in a package of two.

This threaded rod is suited for residential and light commercial applications where a durable, field-workable fastener is needed. Typical uses include suspending pipe hangers, anchoring HVAC components, securing electrical conduit supports, and rigging hardware in marine environments. Its UNC coarse thread pattern is compatible with standard hex nuts, coupling nuts, and threaded rod fittings commonly stocked by trade suppliers. The galvanized finish makes it an appropriate choice for locations with elevated moisture exposure.

Key Features

• UNC coarse thread pattern, 3/8-16, compatible with standard trade hardware
• Hot-dip galvanized finish meets ASTM A153 for corrosion resistance
• Meets ASTM A307 Grade A mechanical strength requirements
• Field-workable: can be drilled, cut, heated, or shaped as needed
• Suitable for plumbing, heating, electrical, and marine project applications
• Sold as a 2-piece package

Compatibility

Designed for use in plumbing, heating, electrical, and marine applications requiring a standard 3/8-16 UNC coarse threaded rod with a corrosion-resistant galvanized finish.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or electricians depending on the application. Always de-energize electrical systems and shut off relevant supply lines before installing supporting hardware. When cutting or drilling the rod on-site, dress cut ends to remove burrs and inspect threads before assembly. Follow applicable code requirements under the IPC, IFGC, or NEC as appropriate for the trade application.