National Marker N222141 Zinc Round U Bolt 5/16x1-3/4x3 in

Product Description

The NATIONAL MARKER N222141 is a zinc-plated round U bolt designed for hanging and fastening applications across plumbing, automotive, and general industrial use. Measuring 5/16 inch in rod diameter with a 1-3/4 inch inside width and 3 inch leg length, this U bolt is constructed from steel with a zinc finish for corrosion resistance. Plate and hex nuts are included, making it a ready-to-install fastener for securing pipe, conduit, or other round stock to structural members. It is sold individually and is a practical, utility-grade component stocked by plumbers, pipefitters, and maintenance technicians.

This U bolt is suited for residential and light commercial plumbing installations, automotive applications, and general maintenance tasks where a reliable pipe hanger or clamp is needed. The round bend profile conforms to standard pipe OD profiles, and the listed pipe size refers to the inside diameter of standard pipe. It is appropriate for use on pipe, wood framing, and similar substrates in both overhead and lateral mounting configurations.

Key Features

• Zinc-plated steel construction for corrosion resistance in exposed or damp environments
• Round U bolt profile designed to seat securely on standard pipe
• 5/16 inch rod diameter with 1-3/4 inch inside width and 3 inch leg length
• Plate and hex nuts included for complete installation without additional hardware
• Suitable for automotive, plumbing, and general industrial fastening applications
• Pipe size references inside diameter of standard pipe

Compatibility

Designed as an OEM-style replacement and general-use U bolt for standard pipe hanging and fastening applications across plumbing, automotive, and industrial installations.

Installation Notes

Installation is typically performed by plumbers, pipefitters, or maintenance technicians using standard hand tools. Shut off flow and depressurize any pipe being clamped before securing the U bolt. Tighten hex nuts evenly on both legs to ensure uniform clamping force without distorting the pipe. Follow applicable local plumbing or mechanical codes for hanger spacing and support requirements.

Technical Specifications

• Rod Diameter: 5/16 inches
• Inside Width: 1-3/4 inches
• Leg Length: 3 inches
• Material: Steel
• Finish: Zinc Plated
• Hardware Included: Plate and hex nuts
• Weight: 0.179 pounds
• Unit of Measure: Each

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N222141