Overview

A U-bolt is a bolt in the shape of the letter U with screw threads on both ends. U-bolts have primarily been used to support pipework, pipes through which fluids and gasses pass. As such, U-bolts were measured using pipe-work engineering speak. A U-bolt would be described by the size of pipe it was supporting. U-bolts are also used to hold ropes together.

The nominal bore of a pipe is actually a measurement of the inside diameter of the pipe. Engineers are interested in this because they design a pipe by the amount of fluid / gas it can transport. As U-bolts are now being used by a much wider audience to clamp any kind of tubing / round bar, then a more convenient measurement system needs to be used.

The information found on this page may contain errors and/or omissions and is designed to be used as a reference only.

Variations

Finishes:
Material Types:
Standards:
  • Federal Specification A-A-1192A,
  • ANSI/MSS SP-69,
  • ANSI/MSS SP-58,
  • WW-H-171-E,

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