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The NATIONAL MARKER N222455 is a stainless steel round U-bolt assembly designed for securing pipe, conduit, and similar round stock to structural surfaces. Each pack includes five U-bolts, one mounting plate, and two hex nuts per bolt, shipped pre-assembled and ready for installation. The U-bolt measures 5/16 inches in rod diameter, 1-3/4 inches in inside width, and 4-1/4 inches in inside length. The stainless steel construction resists corrosion in wet, outdoor, and industrial environments. This hardware is a practical choice for plumbers, pipefitters, electricians, and general contractors who need a reliable U-bolt with the mating hardware already included.
This U-bolt assembly is suited for light-to-medium duty pipe and conduit support applications in both residential and commercial settings. Common install scenarios include securing horizontal pipe runs to unistrut or flat plate, mounting conduit to structural steel, and anchoring hose or tubing in mechanical rooms. The included backing plate distributes load across the mounting surface. Part of the catalog 2193BC series, the N222455 is sold in a minimum quantity of five units per order, with all hardware included in the pack.
Designed as an OEM-style round U-bolt for standard pipe and conduit support applications where a 5/16 in. diameter U-bolt with plate and hex nuts is specified.
Installation is typically performed by licensed plumbers, pipefitters, or electricians depending on the application. Shut off flow or de-energize the line before repositioning or securing the pipe or conduit. Tighten hex nuts evenly to avoid uneven clamping force on the pipe wall. Follow applicable IPC, IFGC, or NEC support-spacing requirements for the specific pipe or conduit type being installed.
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