Gibraltar GIB53059 Round U-bolt 5/16-18 Unc 1-1/2 Inch Pipe

Product Description

The GIBRALTAR GIB53059 is a round U-bolt designed to secure pipe runs to structural supports without a mount plate. Built from C-1010 steel with a hot galvanized finish, it resists corrosion in exposed or damp installation environments. The fastener uses a 5/16-18 UNC thread with a 1 inch thread length and ships with two nuts included. It fits 1-1/2 inch pipe and has an overall length of 2-11/16 inches and a width of 2 inches. Plumbers, pipefitters, and mechanical contractors install this hardware when securing gas, water, or process piping to overhead or wall-mounted structural members.

This U-bolt is suited for residential and light commercial piping applications where a round-bend fastener is required without an integrated mount plate. The hot galvanized finish makes it appropriate for use in mechanical rooms, crawlspaces, and other locations where moisture exposure is a concern. It is sold individually and is intended for use with standard 1-1/2 inch nominal pipe.

Key Features

• Round bend profile fits 1-1/2 inch nominal pipe
• 5/16-18 UNC thread standard for broad hardware compatibility
• 1 inch thread length provides adequate nut engagement on typical strut or plate thickness
• Hot galvanized C-1010 steel finish for corrosion resistance in damp environments
• Includes two nuts — no additional hardware required for basic installation
• No mount plate — pairs with customer-supplied backing plate or strut channel

Compatibility

Designed as an OEM-style pipe support fastener for 1-1/2 inch nominal pipe in standard plumbing and mechanical piping applications.

Installation Notes

Installation is typically performed by licensed plumbers or pipefitters working to IPC or IFGC support-spacing requirements. Shut off and depressurize any line being worked on before repositioning or securing pipe hardware. Use the included nuts with appropriate flat washers or a backing plate to distribute load and prevent pull-through. Do not overtighten in a way that deforms the pipe wall or fitting body.