Equivalent Torsion Moment For Fluctuating Load is the bending moment which, if acting alone in the fluctuating load manner, would produce in a circular shaft the shear stress. And is denoted by Mt. Equivalent Torsion Moment For Fluctuating Load is usually measured using the Newton Millimeter for Torque. Note that the value of Equivalent Torsion Moment For Fluctuating Load is always positive.