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Five zinc-finished steel round U-bolts with plates and hex nuts

National

National Zinc Round U Bolt N222083 2190 Pack of 5

SKU CH-6A7W-WRZSW

Steel U-bolts with zinc finish, plates and hex nuts included for securing pipe or wood in automotive and plumbing tasks

  • MaterialSteel
  • Secure pipe mounting with round-bend design
  • Corrosion-resistant zinc finish protects steel bolts
  • Includes plates and hex nuts for immediate use
  • Fits 1/2 to 3/4 inch pipe inside diameters
  • Pack of five covers multiple installation points

Pack of five zinc U-bolts

This pack contains five 1/4-20 steel U-bolts with a round bend, zinc finish, 1-1/8 inch width and 2-1/4 inch leg length. Each bolt includes a plate and hex nuts for secure fastening. They suit pipe sizes from 1/2 to 3/4 inch inside diameter. The hardware is designed for automotive, plumbing and general home or industrial use.

Sustained clamping on pipe and wood

The steel body and zinc coating resist corrosion during long-term exposure to moisture and vibration. Thread engagement of 1 inch distributes load evenly across the nuts and plate. The round bend conforms to cylindrical surfaces without creating stress concentrations. Fasteners remain tight on pipe, timber or metal brackets through repeated thermal cycles.

Thermal stability and low maintenance

Zinc plating protects the steel from rust without adding insulating thickness that would trap heat. No moving parts or lubrication are required after installation. The lightweight 0.1099 lb units add negligible mass to assemblies. Once torqued, the connection stays secure without periodic retightening.

Highlights

  • Secure pipe mounting with round-bend design
  • Corrosion-resistant zinc finish protects steel bolts
  • Includes plates and hex nuts for immediate use
  • Fits 1/2 to 3/4 inch pipe inside diameters
  • Pack of five covers multiple installation points

Specifications

BrandNATIONAL
MaterialSteel

Questions about this item

Will the zinc coating hold up if these U-bolts run hot near an exhaust pipe all day?

The zinc finish resists corrosion but is not rated for sustained high-temperature exposure near exhaust components.

What tools must I already own to install the 1/4-20 thread U-bolts?

A wrench or socket that fits the included hex nuts and a drill with a 1/4-inch bit for the mounting holes.

Can these round U-bolts clamp onto the 1/2-inch pipe already on my trailer?

Yes, the 1-1/8-inch inside width fits 1/2-inch to 3/4-inch pipe sizes.

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