The function of Lock Washer is to firmly keep the lock nut in adapter sleeve assembly at a position by engaging a groove in shaft and suitable slot in lock nut.

The MB series of Lock Washers are a metric range that are used mainly to lock the KM Lock Nuts. Conforming to DIN 5406. These can be supplied in Steel with various surface treatments available and Stainless Steel (A2) 1.4301.