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Engineering Calc Tools

Series M · 2 calculators

Machine Design calculators

Shaft torsion from torque or power and speed, and bolt preload and tightening torque from standard bolt sizes and grades.

ECT-M01Shaft Torsion CalculatorShear stress and angle of twist for solid or hollow round shafts, from torque or from power and speed.Elastic torsion
ECT-M02Bolt Torque CalculatorRecommended preload and tightening torque for metric and UNC bolts by grade and finish.T = K F d