National Mfg N222-075 Zinc U-bolt 1/4 X 3/4 X 2-1/2 in

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N222-075 is a 112-grade zinc-plated U-bolt designed for securing pipe, conduit, tubing, and similar round stock to a flat surface. The U-bolt measures 0.25 inch in diameter, 0.75 inch in interior width, and 2.5 inches in interior height. The zinc finish provides basic corrosion resistance for dry and mildly exposed indoor installations. This fastener is sold in bulk packs and is a standard hardware component used by plumbers, electricians, HVAC technicians, and general trade contractors when strapping lines and runs to structural members.

This U-bolt is suited for light-duty pipe and conduit support applications in residential and light commercial construction. Typical uses include securing copper or PVC water supply lines, EMT conduit runs, small refrigerant lines, or similar tubular materials to wood framing, unistrut, or flat steel backing. The 0.75 inch interior width makes it appropriate for approximately 0.5 inch nominal pipe or conduit. Each package contains 5 pieces, making it practical for small jobs or supplemental stock.

Key Features

• 112-grade zinc plating for corrosion resistance in dry and mildly exposed environments
• 0.25 inch bolt diameter provides adequate clamping strength for light-duty pipe and conduit support
• 0.75 inch interior width fits approximately 0.5 inch nominal pipe or conduit
• 2.5 inch interior height accommodates typical mounting depth over a flat backing surface
• Sold in a 5-piece bulk pack for small jobs or stock replenishment

Compatibility

Designed as a standard light-duty U-bolt for securing small-diameter pipe, tubing, or conduit to flat structural surfaces in residential and light commercial installations.

Installation Notes

Installation is typically performed by plumbers, electricians, or HVAC technicians during rough-in or strapping phases. Ensure the backing surface is structurally sound before fastening. Apply nuts evenly on both threaded legs to avoid cocking the U-bolt and distorting the supported pipe or conduit. Follow applicable code requirements such as NEC support spacing for conduit or IPC hanger intervals for piping.