National Marker N222356 Zinc Square U Bolt 5/16x2x3

Product Description

The National Marker N222356 is a zinc-plated square U bolt designed to secure equipment, pipe, and structural components to rectangular wood or metal surfaces. Manufactured from steel wire with a zinc finish for corrosion resistance, this fastener measures 5/16 inch in diameter, 2 inches in width, and 3 inches in length. Each unit ships assembled and includes a mounting plate and two hex nuts, making it a complete fastening solution ready for immediate installation. Licensed tradespeople and maintenance professionals reach for this style of U bolt when a positive, square-shouldered grip on a rectangular substrate is required.

This U bolt is suited for light commercial and residential applications where components must be anchored to wood framing, metal strut, or similar rectangular profiles. Typical use cases include securing conduit, pipe runs, and equipment mounting brackets in mechanical, plumbing, and electrical utility spaces. The zinc plating provides baseline corrosion protection appropriate for dry or mildly humid indoor environments. Each unit is sold individually, with a minimum order quantity of 5 pieces.

Key Features

• Square U bolt profile provides flush, stable contact against rectangular wood and metal surfaces
• Steel wire construction with zinc plating for corrosion resistance
• 5/16 inch diameter rod with 2 inch width and 3 inch length
• Ships assembled with mounting plate and two hex nuts included
• Ready-to-install hardware with no additional fasteners required

Compatibility

Designed as an OEM-style replacement or direct-use fastener for applications requiring square U bolt attachment to rectangular wood or metal substrates in residential and light commercial installations.

Installation Notes

Installation is performed by qualified tradespeople or experienced maintenance personnel. Shut off and de-energize any connected systems before securing components with this fastener. Use appropriately sized wrenches to tighten the included hex nuts evenly to avoid distorting the bracket or substrate. Follow applicable local mechanical and building codes when installing fasteners in structural or utility applications.

Technical Specifications

• Rod Diameter: 5/16 inches
• Width: 2 inches
• Length: 3 inches
• Weight: 0.213 pounds
• Material: Steel wire with zinc finish
• Included Hardware: Mounting plate and 2 hex nuts
• UPC: 00038613178687

Standard Information

• Brand: National Marker
• Manufacturer Part Number: N222356