Lock washers MB and MBL are simple, reliable components for securing smaller slotted nuts (nuts from the KM and KML series).
They have one inner tab and several outer tabs evenly distributed around the circumference. The inner tab engages with the slot of the clamping sleeve or shaft, while one of the outer tabs is bent into a slot in the nut for locking.
The washers are made of steel with a minimum tensile strength of 300 N/mm².