A. Rotate the speed of the force to be appropriate, not too fast too large, as far as possible the choice of torque wrench or socket wrench, to avoid the use of movable wrench or electric wrench. Excessive speed will cause the temperature to rise rapidly and cause lock.
B. In the direction of force, the nut must be screwed in perpendicular to the axis of the screw.
C. The use of gaskets can effectively prevent overlocking problems.