Assembly recommendation - maximal setting torque

  • minimum 30% less than tightening torque (slightly less than max. clamping force)
  • maximal 90% utilisation of yield point

to increase over-tightening torque
stop teeth (greater difference between insertion and over tightening torque ==> fitting security

insertion speed for plastic
approx. 500 to 600 rpm (melting may occur at higher speeds)





Stop teeth


  • Increases over-tightening torque
  • robust fastening
  • especially suitable for light-gauge sheets or other low-strength materials

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