- Spreads the load of a bolted joint
- Zinc Yellow Passivate - For internal applications
- Trivalent Chromium (Cr3+) RoHS compliant
- Zinc plating to AS1789-2003, Table 1
A square washer is a thin plate with a hole in the centre. They are used for to minimise scouring or scratch damage to mating material as a result of nut rotation.
These washers are also used 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.