Bolt Torque Calculator

Created by Kenneth Alambra
Last updated: Jun 29, 2022
This calc simply determines if objects A and B are able to slide past each other. If the product of the clamping force and the coefficient of friction is greater than the applied slipping force, then friction prevents sliding between the surfaces (and the net slipping force is zero).
Kenneth Alambra
T = K·F·d(1 - l/100)
Bolt type
Mild-steel, dry
Constant K
Diameter (d)
in
Lubrication
Lubricant
No lubricant
Lubrication factor (l)
%
Force and torque
Clamping force (F)
lbf
Torque (T)
ft-lb
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