National Mfg N347-831 Zinc U-bolt 1/2x4.5x7 with Plates Nuts

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N347-831 is a zinc-plated steel U-bolt assembly designed for fastening pipe, wood, and similar materials in a wide range of trade and industrial applications. The bolt measures 0.5 inches in diameter with a 4.5-inch inside width and a 7-inch leg length. Manufactured from steel wire with a zinc finish for corrosion resistance, the assembly ships complete with mounting plates and hex nuts, making it a ready-to-install fastening solution. Plumbers, HVAC technicians, electricians, and general contractors reach for U-bolts like this when securing pipe runs, conduit, or structural components to framing or surfaces.

This U-bolt is suited for residential and commercial applications including plumbing pipe support, conduit strapping, automotive component mounting, and general industrial fastening to wood or metal substrates. The 0.5-inch rod diameter provides substantial holding strength for medium-duty pipe and conduit support tasks. Plates and hex nuts are included in the package, so no additional hardware is required for a standard installation. The assembly is sold in a bulk pack of 5 units per package.

Key Features

• Zinc-plated steel wire construction for corrosion resistance in wet or exposed environments
• 0.5-inch rod diameter with 4.5-inch inside width and 7-inch leg length
• Includes mounting plates and hex nuts — no additional hardware required
• Suitable for pipe, wood, conduit, and general industrial fastening
• Bulk pack of 5 assemblies per package

Compatibility

Designed as a general-purpose U-bolt for securing pipe, conduit, wood members, and similar materials in plumbing, automotive, and industrial fastening applications.

Installation Notes

Installation is performed by plumbers, HVAC technicians, or general tradespeople using standard hand tools. Shut off flow or de-energize any pipe or conduit being secured before beginning work. Thread hex nuts evenly on both legs of the U-bolt to ensure the mounting plate seats flush and load is distributed uniformly. Follow applicable plumbing or mechanical codes for pipe support spacing and fastener requirements.