National Marker N222471 Round U-bolt 5/16 in 5 Pack

Product Description

The NATIONAL MARKER N222471 is a round U-bolt assembly designed for clamping, mounting, and securing pipe, conduit, and structural members in trade and industrial applications. Each pack includes five U-bolts with a mounting plate and two hex nuts per bolt, shipped fully assembled for faster installation. The U-bolt measures 5/16 inches in rod diameter, 2-1/2 inches in inside width, and 5 inches in inside height. Constructed from steel with a stainless steel finish, this hardware resists corrosion in demanding service environments. Plumbers, pipefitters, electricians, and general contractors reach for this fastener when a reliable, pre-packaged U-bolt assembly is needed on the job.

This U-bolt assembly is suited for residential and light commercial applications where pipe, conduit, or tubing must be anchored to structural supports, joists, or unistrut. The 5/16-inch rod diameter makes it appropriate for medium-load clamping duties. The included plate and hex nuts allow direct installation without sourcing additional hardware, reducing trip time and assembly labor on multi-point installations.

Key Features

• 5/16 inch rod diameter provides reliable grip for medium-duty clamping applications
• 2-1/2 inch inside width and 5 inch inside height accommodate a range of pipe and conduit sizes
• Comes pre-assembled with mounting plate and two hex nuts per U-bolt
• Pack of 5 units reduces restocking frequency on multi-point installations
• Stainless steel finish provides corrosion resistance in wet or exposed environments
• Part of the catalog model 2193BC series

Compatibility

Designed as an OEM-style replacement or direct-use fastener for pipe, conduit, and structural clamping applications requiring a 5/16 inch round U-bolt with plate and hex nuts.

Installation Notes

Installation is typically performed by plumbers, pipefitters, or electricians following applicable IPC or NEC requirements for support spacing. Power down or isolate any system before securing conduit or pipe runs. Use an appropriately sized wrench to tighten hex nuts evenly on both legs of the U-bolt to ensure even clamping load across the plate. Do not over-torque, as this may deform the pipe or conduit wall.

Technical Specifications

• Rod Diameter: 5/16 inches
• Inside Width: 2-1/2 inches
• Inside Height: 5 inches
• Material: Steel with stainless steel finish
• Pack Quantity: 5 units
• Includes: Plate and 2 hex nuts per U-bolt, assembled
• Weight: 0.279 pounds
• UPC: 00038613191440
• Series: 2193BC

Standard Information

• Brand: NATIONAL MARKER
• Manufacturer Part Number: N222471