scope:

Scope and field of application

Spring lock washers covered in this standard are deemed to be spring washers designed for use with bolthut assemblies involving fasteners of property class 5.8 or less, as specified in IS0 898 Part 1. They are intended to counteract the effect of setting which results in bolthut assemblies working loose (see DIN 267 Part 26). They do not effectively prevent loosening of the assembly under varying radial load and are designed for use with short bolts predominantly subject to thrust.