Gibraltar GIB51470 Round U-bolt 1/4-20 Unc for 1 in Pipe

Product Description

The GIBRALTAR GIB51470 is a round U-bolt designed to secure 1-inch pipe to structural supports in mechanical, plumbing, and electrical installations. Manufactured from C1010 steel with a zinc-plated finish, it provides corrosion resistance in typical indoor and light-duty environments. The U-bolt features a 1/4-20 UNC thread standard with a 2-1/2 inch thread length, giving installers adequate engagement depth when fastening. Each unit ships without a mount plate and includes four nuts, making it ready for direct installation onto strut channel, unistrut, or flat bar stock. Overall length is 3-7/16 inches with an inside width of 1-3/8 inches. Weight is 0.11 pounds.

This U-bolt is suited for residential and light commercial mechanical rooms, utility spaces, and pipe rack systems where 1-inch nominal pipe must be anchored to overhead or wall-mounted support structures. Typical applications include securing copper, black iron, CPVC, or conduit runs in HVAC, plumbing, and electrical rough-in work. It is installed by plumbers, pipefitters, HVAC mechanics, and electricians as part of standard pipe support assemblies. The zinc plating makes it appropriate for dry or intermittently damp interior locations.

Key Features

• Round U-bolt profile sized for 1-inch nominal pipe with 1-3/8 inch inside width
• 1/4-20 UNC thread standard, 2-1/2 inch thread length for full nut engagement
• C1010 steel construction with zinc-plated finish for corrosion resistance
• Includes four nuts — no additional hardware required for basic installation
• No mount plate included — mounts directly to strut channel, flat bar, or customer-supplied hardware
• Overall length of 3-7/16 inches; lightweight at 0.11 pounds

Compatibility

Designed as an OEM-style pipe support fastener for 1-inch nominal pipe in standard trade pipe support assemblies. No specific system or model compatibility is stated by the manufacturer for this part.

Installation Notes

Installation is performed by licensed plumbers, pipefitters, HVAC mechanics, or electricians depending on the piping system being supported. Shut off and isolate the pipe system before adjusting or repositioning existing pipe support hardware. Fasten nuts evenly on both threaded legs to prevent the U-bolt from cocking or applying uneven load to the pipe. Follow applicable codes — IPC, IFGC, or NEC as appropriate — for pipe support spacing and fastener requirements.