GN3664 Torque Limiting Tristar Knob Screws
These torque limiting tristar knob screws GN 3664 are used when the torque applied by hand must be set or limited.
When turned clockwise, the torque mechanism of the tristar knob triggers a “slipping” effect after the specified torque is reached. When turned anti-clockwise, the mechanism locks up to disable any torque limiting. This ensures that a maximum permissible torque is not exceeded, while the torque required for loosening is always reliably transmitted.
Knob - Technopolymer (Polyamide PA-HP), glass fibre reinforced, black matte
Torque limiting mechanism - Steel, hardened
Other parts - Steel, blackened
Cover - Plastic, light gray
Other dimensions of threaded studs analog GN300
Other inserts with special threaded studs analog GN306
Torque limiting turning anti-clockwise or turning both anti-clockwise and clockwise