Gibraltar GIB51565 Round U-bolt 5/8-11 Unc 8 Inch Pipe

Product Description

The GIBRALTAR GIB51565 is a round U-bolt designed to secure 8-inch pipe in structural, mechanical, and piping support applications. Made from C-1010 steel with a zinc-plated finish for corrosion resistance, this U-bolt features a 5/8-11 UNC thread size with a thread length of 3.75 inches and an overall length of 11.125 inches. The 8.75-inch width accommodates standard 8-inch pipe OD fitment. Four nuts are included for immediate installation without additional hardware sourcing. Plumbers, pipefitters, mechanical contractors, and HVAC installers use this type of hardware to anchor piping runs to structural supports, equipment frames, or threaded rod assemblies.

This U-bolt is suited for residential and commercial piping systems where 8-inch pipe must be clamped and supported without a mount plate. Typical applications include riser support, horizontal pipe runs, mechanical room piping, and equipment anchoring. The inch-standard thread and UNC designation make it compatible with standard SAE fastener hardware. It is sold individually and includes four nuts, making it ready to install in single-pipe clamping configurations.

Key Features

• Round U-bolt profile for full 360-degree pipe contact on 8-inch pipe
• 5/8-11 UNC thread standard with 3.75-inch thread length for secure nut engagement
• C-1010 steel construction provides solid mechanical strength for structural pipe support
• Zinc-plated finish offers baseline corrosion protection in typical indoor mechanical environments
• Includes four nuts — no additional fastener hardware required
• No mount plate — installs directly onto threaded rod or structural flat bar

Compatibility

Designed for use with standard 8-inch nominal pipe in inch-measurement piping systems. Fits applications requiring a round U-bolt without a mount plate and 5/8-11 UNC threaded legs.

Installation Notes

Installation is typically performed by licensed plumbers, pipefitters, or mechanical contractors following applicable IPC and ASME B31 piping support requirements. Before installing or adjusting pipe supports on active systems, isolate and depressurize the affected line. Tighten the four included nuts evenly to prevent uneven clamping load on the pipe. Do not use this U-bolt as the sole restraint on lines subject to thrust or seismic loading without consulting a structural engineer.