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Hobson dimension table

U Bolt Sizes: Round and Square U Bolt Kits, Imperial and Metric

A three-page Hobson technical sheet of U bolt dimensions. It lists mild steel round U bolt kits in BSW and metric sizes and square U bolt kits in metric sizes, each with part number, finish, thread size, width, length, thread length and pack.

What this covers

  • BSW round U bolt kits
  • Metric round U bolt kits
  • Metric square U bolt kits
  • Square U bolts with spring washers

For U-Bolt.

Key things to remember

The essentials from this document in plain words. Check the full document before you rely on a figure.

  • All are mild steel kits supplied with 2 nuts, hot dip galvanised (HDG) or zinc plated (Z/P). One range of metric square U bolts also includes 2 spring washers.
  • BSW round U bolts: 1/4" BSW zinc plated for 1/2" to 2" nominal bore, and 3/8", 1/2", 5/8" and 3/4" BSW, mostly galvanised, for 1/2" to 12" nominal bore.
  • Metric round U bolts, galvanised: M10 to M24 for 15 to 600 nominal bore. For example KURMSGCM100034 is M10 for 25 nominal bore, 34mm wide, 85mm long with 50mm of thread.
  • Metric square U bolts: M10, 42mm wide (86mm long galvanised or zinc plated, 127mm long zinc plated), and galvanised M10 and M12 square U bolts with spring washers from 24mm to 127mm wide.
  • Dimensions given for each part: A (thread diameter), W (width), L (length) and T (thread length), plus pack quantity and pack weight.

Who it helps: Anyone matching a U bolt to a pipe or section size.

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This document is published by Hobson Engineering, who supply this range to us. We show it here in full so you can read it next to the product; the summary above is ours. Read it on this page or download the PDF. For the most current version, ask us.
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