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The GIBRALTAR GIB53686 is a round U-bolt with a mount plate, designed for securing 1-1/2 inch pipe in plumbing, HVAC, and mechanical piping installations. Manufactured from C-1010 steel with a hot galvanized finish, this U-bolt resists corrosion in wet and exposed environments. The 3/8-16 UNC thread with a 1-1/4 inch thread length provides secure fastening depth, and the included mount plate simplifies attachment to structural surfaces. Two nuts are included for immediate installation. Weighing 0.29 pounds, this hardware is a direct-fit component for pipe support applications where a round-profile, plated steel fastener is required.
This U-bolt is suited for residential and light commercial pipe support work. It secures 1-1/2 inch pipe runs to framing members, joists, unistrut, or wall plates in plumbing rough-in, HVAC piping, and mechanical systems. The hot galvanized finish makes it appropriate for installations in crawl spaces, mechanical rooms, and other locations subject to moisture exposure. The mount plate distributes clamping load evenly and provides a flat bearing surface for consistent torque-down during installation.
Designed as an OEM-style pipe support fastener for 1-1/2 inch pipe in residential and commercial plumbing, HVAC, and mechanical piping applications.
Installation is typically performed by licensed plumbers, pipefitters, or HVAC mechanics. Shut off system pressure and drain the line before repositioning or replacing pipe supports. Use appropriate hand tools to tighten the included nuts evenly on both sides of the U-bolt to prevent lateral pipe movement. Follow applicable IPC or IFGC support spacing requirements for the pipe material and fluid being carried.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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