Lock washers are classified in the same category as shims. They are parts of the auxiliaries of mechanical assemblies. They are used to secure moveable or stable engine parts which are strained by dynamic and impact forces (bolts, shafts etc.). With tightening enforcement, occurs an elastic or plastic deformation of the surfaces, which prevents the disassembly of the connecting parts.

Bolt connections. Shafts where high temperature exist.
Mild Steel Bolt connections. Shafts where average temperature exist.
Stainless Steel Bolt connections. Shafts where high temperature, forces and aggressive environment exist.
Technical characteristics: Dimensions according to the international standards (DIN, ANSI, JIS etc.) or upon customer's request.