Locking nuts, locknuts, security nuts

Technical Pliers – Catalogue Page 79
... with rounded edges tightening locknuts Fine adjustment by pushing a button: fast and comfortable one-hand fine adjustment by pushing a button with 15 adjustment positions directly on the workpiece for perfect grip on different sized workpieces and a favourable position of the hand Chrome Vanadium steel, oil-hardened ...

Bearings for screw drives – Catalogue Page 3
... external influences. The precision locknuts AM, ZM, ZMA for axial or radial locking are used to set bearings for screw drives to a defined axial preload... They are also used where high axial forces must be supported and high runout accuracy and rigidity are required. 2 Schaeffler Group Industrial