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  1. Q519

    Bolt Torque Question

    OK let me rephase the Question. How do i find out what current friction factor is experimentally??? Then i can do the same experiment on the new coated bolt to find out friction factor experimentally.
  2. Q519

    Bolt Torque Question

    It was torqued wrenched tested to see if the friction has increased. So Tavg were measured for both bolt condition. This is the same bolt, same thread, only thing changed was the coating on the bolt thread.
  3. Q519

    Bolt Torque Question

    I have a bolt without any friction information. T=FDK D=0.008m Tmax=20Nm K= ??? unknow friction factor It was tested and Tavg(old)=2Nm. The same bolt was coated and the friction has increased. It was tested and Tavg(new)=9.8Nm I know the relation 4.65Tavg(old)=Tavg(new) If both bolt was...

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