Gibraltar GIB53065 Round U-bolt 5/16-18 Unc 2 Inch Pipe

Product Description

The GIBRALTAR GIB53065 is a round U-bolt designed to secure 2-inch pipe in mechanical, plumbing, and HVAC support applications. Manufactured from C1010 steel with a hot-dipped galvanized finish, this U-bolt resists corrosion in both indoor and outdoor service environments. The 5/16-18 UNC thread is a standard coarse-thread specification compatible with widely available hardware. Thread length is 1 inch, overall length is 3-3/16 inches, and the inside width is 2-1/2 inches to fit a 2-inch nominal pipe. Two nuts are included. This fastener is installed without a mount plate, making it suitable for direct through-hole or strut mounting configurations. Plumbers, pipefitters, and HVAC technicians are the primary installers.

The GIB53065 is used wherever 2-inch nominal pipe must be anchored to structural surfaces, unistrut channel, or threaded rod assemblies. Typical applications include domestic water supply piping, drain and vent lines, refrigerant line sets routed through mechanical rooms, and light commercial HVAC copper or steel pipe runs. The hot-dipped galvanized coating makes this U-bolt appropriate for damp mechanical spaces, crawlspaces, and exterior-adjacent installations where bare steel would corrode prematurely.

Key Features

• Hot-dipped galvanized finish on C1010 steel for corrosion resistance in wet or outdoor-adjacent environments
• 5/16-18 UNC thread standard — compatible with common nuts, washers, and strut hardware
• Sized for 2-inch nominal pipe with a 2-1/2 inch inside width
• 1-inch thread length provides adequate engagement for standard nut and lock-nut installation
• Ships with two nuts included — no separate hardware sourcing required for basic installation
• No mount plate required — fits through-hole and unistrut channel applications directly

Compatibility

Designed as a standard round U-bolt for 2-inch nominal pipe, suitable for use with unistrut channel, threaded rod hangers, and structural mounting surfaces where a 5/16-18 UNC fastener pattern is required.

Installation Notes

Installation is typically performed by licensed plumbers, pipefitters, or HVAC mechanics following applicable IPC or IFGC pipe support spacing requirements. Shut off and depressurize any active pipe before repositioning or adding supports. Tighten nuts evenly to avoid distorting the pipe or imposing uneven load on the U-bolt legs. Do not overtighten on plastic or soft copper pipe without appropriate saddle protection between the U-bolt and pipe surface.