National Marker N222174 Zinc Round U Bolt 5/16x2x4-1/2 in

Product Description

The NATIONAL MARKER N222174 is a zinc-plated round U bolt designed for hanging and fastening applications across a wide range of trades. Measuring 5/16 inches in diameter with a 2-inch inside width and 4-1/2 inches in length, this U bolt is built for reliable clamping and support. The zinc finish provides corrosion resistance for both indoor and outdoor use. Each unit ships with plate and hex nuts included, making installation straightforward for HVAC techs, plumbers, electricians, and general contractors working with pipe or structural supports.

This U bolt is suited for securing pipe, conduit, wood, and similar materials in residential and light commercial settings. Common applications include pipe hangers, conduit supports, and fastening assemblies in automotive, plumbing, and general industrial environments. The round bend profile distributes clamping load evenly around the pipe or support surface. Pipe sizes referenced are based on inside diameters of standard pipe, making it easy to match the bolt to the correct nominal pipe size.

Key Features

• Zinc-plated steel construction for corrosion resistance in indoor and outdoor use
• Round U bolt profile for even load distribution around pipe or cylindrical surfaces
• Includes plate and hex nuts for complete, ready-to-install assembly
• Suitable for automotive, plumbing, HVAC, and general industrial fastening applications
• Pipe size ratings based on inside diameters of standard pipe

Compatibility

Designed as an OEM-style fastening component for use with standard pipe, conduit, wood, and similar structural materials in residential and light commercial applications.

Installation Notes

Installation is appropriate for licensed plumbers, HVAC technicians, and electricians working with pipe hangers and support systems. Shut off fluid flow or de-energize circuits before installing or repositioning fasteners on active systems. Ensure the U bolt diameter matches the outside diameter of the pipe or conduit being supported. Follow applicable local mechanical or plumbing codes when using U bolts as pipe supports in permanent installations.

Technical Specifications

• Thread Diameter: 5/16 inches
• Inside Width: 2 inches
• Length: 4-1/2 inches
• Material: Steel with zinc plating
• Weight: 0.236 pounds
• Includes: Plate and hex nuts
• Unit of Measure: Each
• Minimum Order Quantity: 5

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N222174