WASHERS FLAT SQUARE GALVANISED
WASHER SQUARE GALVANISED
A square washer is a thin plate with a hole in the centre. They are used for two main reasons:
1. To minimise scouring or scratch damage to mating material as a result of nut rotation.
2. To increase the effective bearing surface of the bolt and or nut. That is, to distribute the load of a threaded fastener over a larger area and prevent deformation of the bearing surfaces.
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