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The NATIONAL MARKER N222463 is a stainless steel round U-bolt assembly designed for securing pipe, conduit, and tubing to structural supports in mechanical, plumbing, and electrical installations. Each pack contains five U-bolts, each supplied with a bearing plate and two hex nuts, assembled and ready for installation. The U-bolt measures 5/16 inch in rod diameter, 2 inches in inside width, and 4-1/2 inches in length. The stainless steel construction provides corrosion resistance in wet, outdoor, and chemically exposed environments. This hardware is a standard fastening component installed by plumbers, pipefitters, electricians, and HVAC technicians across residential and commercial applications.
The N222463 U-bolt assembly is suited for pipe and conduit support applications where corrosion resistance is required, such as exterior installations, marine environments, mechanical rooms with high humidity, and exposed utility runs. The included plate and pre-assembled hex nuts reduce parts sourcing and speed up installation. This is catalog model series 2193BC. The pack of five makes it practical for multi-point support runs on a single job.
Designed as an OEM-style mechanical fastener compatible with standard pipe and conduit support applications requiring a 5/16 inch round U-bolt with a 2 inch inside width.
U-bolts of this type are installed by licensed plumbers, pipefitters, and electricians during rough-in or support work on pipe and conduit runs. Shut off the relevant system and relieve any pressure before adjusting or repositioning existing pipe supports. Torque the hex nuts evenly to avoid distorting the bearing plate or deforming the pipe. Refer to applicable IPC, IFGC, or NEC support-spacing requirements for the specific pipe or conduit type being secured.
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