Related Resources: hardware
Self Tapping Screw Pull-Out and Torque Calculator
This calculator tool will determine the pull out force and stripping torque for self tapping screws.
To see the equation behind his calculator, visit:
Boss Hole Dimension: For the highest ratio of stripping to driving torque, use a hole diameter equal to the pitch diameter of the screw.
Boss Outside Dimension: The most practical boss diameter is 2.5 times the screw diameter. If its wall is too thin, a boss may crack. Higher stripping torques are not achieved with thicker bosses.
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