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Washers are a thin disk-shaped piece that has a hole in the middle. It is used to distribute the load of a threaded fastener, such as a nut, bolt or screw. They are normally made from metal, however plastic ones also exist.

Washers have a couple of purposes:

  • They prevent galvanic corrosion
  • Allow pressure to be distributed more evenly, which is necessary to protect the surface
  • A Washer keeps the nut level, which – in the long-term – prevents the nut from gradually becoming loose

 At Howarth Timber & Building Supplies, we have a variety of Washers in several sizes (it is important to use the correct tools that correspond with the Washer):

  • M6
  • M8
  • M10
  • M12

 NOTE: Not to be confused with “Gaskets” – rubber “washers” – that are used in Taps.