National Mfg N222-406 Square U-bolt 3/8x4x7 Zinc 5-pack

Product Description

The NATIONAL MFG/SPECTRUM BRANDS HHI N222-406 is a zinc-plated square U-bolt supplied with a plate and hex nuts attached, sold in a pack of five. It measures 3/8 inch diameter by 4 inches wide by 7 inches in length and is designed to secure piping, conduit, tubing, or other cylindrical and rectangular objects to wood or metal structural members. The square bend geometry provides flat, even clamping contact against rectangular stock, making it a common hardware choice for utility, mechanical, and light structural fastening tasks. Plate and hex nuts are included pre-attached to simplify installation.

This U-bolt is suited for general-purpose fastening applications in residential and light commercial settings. Typical uses include securing conduit runs, pipe lines, or bracing components to wood framing, metal struts, or flat bar stock. The zinc finish provides basic corrosion resistance for indoor or sheltered outdoor installations. Trades commonly reaching for this hardware include plumbers, electricians, HVAC installers, and general contractors working with standard framing and utility runs.

Key Features

• Square bend profile for flush contact against rectangular and flat surfaces
• Zinc finish for corrosion resistance in dry and sheltered applications
• Plate and hex nuts included and pre-attached for faster installation
• 3/8 inch rod diameter provides solid clamping strength for medium-load fastening
• Sold in a pack of five for multi-point installations

Compatibility

Designed for securing various products to rectangular wood and metal objects. Suitable as a general-purpose square U-bolt fastener where 3/8 inch diameter by 4 inch by 7 inch dimensions match the application requirement.

Installation Notes

Power down or de-energize any associated systems before securing conduit or piping runs. Ensure the mounting surface is structurally sound and capable of supporting the intended load before tightening hardware. Hand-tighten hex nuts evenly on both sides of the plate before applying final torque to prevent cocking the U-bolt. Follow applicable NEC, IPC, or IFGC guidelines when fastening conduit or pipe in code-governed installations.