National Marker N347-807 Zinc Round U-bolt

Product Description

The NATIONAL MARKER N347-807 is a zinc-plated round U-bolt designed for hanging and fastening applications across a range of trade and industrial settings. Measuring 0.5 inches in diameter with a 3-inch inside width and 5.5-inch leg length, this U-bolt provides a secure mechanical connection to pipe, wood, or structural material. The zinc plating offers basic corrosion resistance for both indoor and light outdoor environments. Each unit ships with a mounting plate and hex nuts included, making it ready for immediate installation without sourcing additional hardware.

This U-bolt is suited for plumbing pipe support, automotive component mounting, and general-purpose fastening tasks in residential and light commercial applications. Plumbers and mechanical tradespeople commonly use round U-bolts of this type for suspending pipe runs from joists or structural framing. The included hardware reduces parts sourcing time on the job.

Key Features

• Zinc plating provides corrosion resistance for indoor and light-duty outdoor use
• Round bend profile suits standard pipe OD fastening applications
• Plate and hex nuts included — no additional hardware required
• Sold individually (each)
• Compatible with pipe, wood, and other structural substrates

Compatibility

Designed as a general-purpose round U-bolt suitable for pipe support, automotive, and structural fastening applications in residential and light commercial installations.

Installation Notes

Installation is typically performed by plumbers, pipefitters, or general mechanical tradespeople. Before fastening, ensure the mounting substrate can support the intended load. Thread hex nuts evenly on both legs to avoid cocking the bolt and apply even clamping force. Verify that pipe support spacing complies with applicable plumbing codes such as the IPC for the pipe material and diameter being supported.

Technical Specifications

• Bolt Diameter: 0.5 inches
• Inside Width: 3 inches
• Leg Length: 5.5 inches
• Material: Zinc-plated
• Weight: 0.821 pounds
• Sold As: Each

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N347-807