- Flat washers are used under the head of a bolt or nut to distribute the forces applied when tightening.
- Spring (or lock) washers place tension against a nut after tightening - this helps to prevent the nut from working loose.
Imperial Washers![]() Falt and Spring washers to suit Imperial (UNC/UNF) bolts - available in Zinc Plated Steel and various lot/box sizes.
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