Features and applications
The knob MZD incorporates a mechanism (ELESA patent) which, screwing clockwise until locking, reaches the required torque value by releasing it from the clamping element (boss or threaded screw).
The knob is used when the applied tightening torque must not exceed a certain value.
The torque transmission from the knob to the clamping element occurs by means of a spring system that prevents the set torque from being exceeded. By rotating counterclockwise, the knob unlocks.
The knob has been tested up to 60000 tightening cycles and the values of the torque were unchanged.