Safety washers are in the form of a disc spring but with a trapezoidal cross-section and serrations on both sides.
Used where secure fastening connections to counter the effect of vibration are required.
Type VS is thicker and 'extra strong' designed for high strength applications.
Suitable for bolt tensile up to Class 10.9
While thickness differs, the outside and inside diameters as well as the serrations are the same as Type S.
