M_D = Tightening torque per set screw [Nm]

F_V = Required axial pretension force of the threaded connection [N]

A = Constant [mm], includes the Calculation factors for the respective thread width (catalogue value)

µ_D = Frictional coefficient for the end contact face of the set screw, Approximate value = 0.13

d₆ = Dog point dia. of the set screw [mm] (catalogue value)

n = number of set screws