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  1. 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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