This bag contains four M20 Form A washers with a bright zinc plated finish, made for use with standard M20 bolts and threaded fasteners. The wide, flat profile helps to distribute clamping force evenly, making these washers suitable for heavy-duty structural joinery or machinery installation on site.
Typically used in steelwork, large timber fixings, and securing heavy brackets or plates, the washers help prevent damage to assembly surfaces and reduce the chance of fasteners loosening from vibration. Their robust construction and corrosion-resistant finish make them well suited for use in dry or low humidity environments.
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