National Mfg N218-255 Threaded Rod 1/2-13x36 Unc Coarse

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N218-255 is a 1/2 inch-13 x 36 inch threaded rod built for hanging, connecting, clamping, and supporting loads in plumbing, heating, and electrical installations. It features UNC coarse threads and carries a safe working load of 3,100 pounds. The rod is coated with Weatherguard Protection, a corrosion-resistant finish that makes it especially suited for marine environments and outdoor applications where exposure to moisture, salt air, and harsh weather is a routine concern. Licensed trades and experienced DIYers use this rod when a reliable, field-workable fastener is needed across multiple disciplines.

This threaded rod fits a wide range of trade applications including pipe hangers, unistrut channel assemblies, HVAC equipment supports, conduit bracing, and general structural fastening in both residential and light commercial settings. Its material can be drilled, cut, heated, or shaped on the job site, reducing the need to stock multiple lengths. The corrosion-resistant coating adds service life in outdoor, coastal, and high-humidity environments where bare steel rod would degrade quickly.

Key Features

• UNC coarse thread pattern for broad compatibility with standard nuts, couplers, and hardware
• Safe working load of 3,100 pounds for demanding hanging and support applications
• Weatherguard Protection coating resists corrosion in marine and outdoor environments
• Field-workable — can be drilled, cut, heated, or bent to fit the installation
• Suitable for plumbing, heating, electrical, and general fastening applications

Compatibility

Designed as a general-purpose threaded rod for use with standard 1/2 inch-13 UNC nuts, couplers, pipe hanger hardware, and channel strut systems commonly used in plumbing, HVAC, and electrical rough-in work.

Installation Notes

Installation is typically performed by plumbers, HVAC technicians, or electricians depending on the application. Always de-energize electrical systems and shut off supply lines before working in the vicinity of live circuits or pressurized pipe. When cutting to length, use a thread die or file to clean the cut end before threading on hardware. Follow applicable codes such as NEC, IPC, or IFGC for hanger spacing and support requirements specific to the system being installed.