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  1. datahead

    Torque vs. axial force on UNC threads

    I am trying to locate a formula for determining the axial (linear) force generated by the torque used on a 1/4 -20 UNC screw. I can derive that force for Acme and ball lead screws, but the pressure angle is different than the UNC thread. I can also derive the clamping force or tension/preload...

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