Key tightening definitions

The screw is run down until the screw head touches the work piece at the seating point (A). The screw is then tightened until the final torque (C) is reached, this is often also the peak torque (B), but in some cases the final torque is lower.
The clamp angle (D) and clamp torque (E) is measured between the seating point and the peak torque.

Table Title

A

Seating point

B

Peak torque

C

Final torque

D

Clamp angle

E

Clamp torque