National Mfg N179-598 Zinc Threaded Rod 5/16-18 X 72 in

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N179-598 is a zinc-plated threaded rod measuring 5/16-18 x 72 inches with UNC coarse threads. It is designed for use as a fastening, hanging, or anchoring element in mechanical, electrical, and plumbing installations. The rod meets ASTM A37 Grade A standards and carries a minimum tensile strength of 6 KSI. It can be drilled, cut, heated, or shaped in the field to meet application-specific length or configuration requirements. Licensed tradespeople and contractors use this type of all-thread rod when assembling pipe hangers, equipment supports, unistrut assemblies, and similar structural connections.

This threaded rod is suited for residential and light commercial construction and retrofit work across HVAC, plumbing, and electrical trades. Its full-length 72-inch thread pattern allows installers to cut sections to the required length without losing thread engagement. The zinc coating provides basic corrosion resistance for interior and dry-location applications. It is sold in packages of 2 rods per unit.

Key Features

• 5/16-18 UNC coarse thread profile for broad fastener compatibility
• 72-inch full-thread length — cut to any required dimension on site
• Zinc plating for corrosion resistance in interior applications
• Meets ASTM A37 Grade A with minimum tensile strength of 6 KSI
• Field-workable: can be drilled, cut, heated, or shaped
• Sold as a 2-piece package

Compatibility

Designed as a standard 5/16-18 UNC all-thread rod compatible with corresponding hex nuts, coupling nuts, pipe hanger hardware, and threaded inserts used in mechanical and structural support assemblies.

Installation Notes

Threaded rod installation is common across HVAC, plumbing, and electrical trades and is typically governed by applicable building codes and manufacturer hardware specifications. Always use a properly rated cutting tool when sizing the rod to length, and dress cut ends to remove burrs before engaging nuts or couplings. Secure all connections with the appropriate nut and washer combination rated for the load. Follow NEC, IPC, or IFGC suspension and support spacing requirements as applicable to the system being installed.