National Marker N222083 Zinc Round U Bolt

Product Description

The NATIONAL MARKER N222083 is a zinc-plated round U bolt designed for hanging and fastening applications across automotive, plumbing, and general industrial uses. Part of the National catalog 2190 series, this U bolt measures 0.25 inches in diameter with a 1.125-inch inside width and an overall length of 2.25 inches. It ships with plate and hex nuts included, making it ready for immediate installation. The steel construction with zinc plating provides corrosion resistance suitable for a range of indoor and light-duty applications. Each unit is sold individually and is well suited for trade professionals and maintenance technicians working with pipe runs, brackets, or structural fastening tasks.

This U bolt is primarily used for securing pipe to structural members or hanging pipe from overhead supports. The pipe sizes listed in National 2190 series documentation refer to the inside diameters of standard pipe. Typical applications include HVAC, plumbing rough-in, automotive, and general maintenance scenarios where a reliable, compact fastener is needed. The included plate and hex nuts allow the installer to complete the mount without sourcing additional hardware.

Key Features

• Zinc-plated steel construction for corrosion resistance in standard service environments
• Round bend profile for secure, even contact around pipe and round stock
• Plate and hex nuts included — no additional hardware required
• Suitable for automotive, plumbing, and industrial fastening applications
• Part of the National catalog 2190 series for consistent OEM-style replacement sourcing

Compatibility

Designed as an OEM-style replacement U bolt in the National 2190 series, suitable for standard pipe hanging and fastening applications where pipe size references correspond to inside diameters of standard pipe.

Installation Notes

Installation is typically performed by plumbers, HVAC technicians, or maintenance mechanics using standard hand tools. Ensure the pipe or workpiece is properly supported and stationary before tightening the hex nuts against the mounting plate. Do not overtighten, as this can distort the pipe or compromise the U bolt threads. Follow applicable local mechanical codes for pipe support spacing and fastener requirements.