KM and KML lock nuts are used to locate bearings onto a shaft. They have metric threads and four equally spaced slots located around their circumference to accommodate a spanner. They should be locked by a lock washer to prevent unintentional loosening. KM and KML lock nuts can be reused, provided they are not damaged.

• Simple, stable and reliable fastening element
• Easy to install and remove
• Reusable with a new lock washer
• Available for thread M 10×0.75 to M 200×3 (sizes 0 to 40)