Torque Control 4
The K, or nut factor, not to be confused with the frictional coefficient, can be thought of as a combination
of three factors: K1, a geometric factor, K2, a thread friction related factor, and K3, an underhead friction related factor. While there are published tables for K, these will usually vary from publication to publication. For a more detailed analysis it is desirable and often necessary to determine this value experimentally by using a specially designed torque-tension load cell.
