# YM2 - Tighten to Yield: Method 2

Tools
QST

This step runs the tool with the specified speed in the forward direction until the yield point is detected.

Search for the yield point starts when the torque has reached Tt. The average of the torque over Af degrees is calculated. This procedure is repeated N rs times.

A reference slope is calculated with linear regression over the N rs points. After that, new average values are continuously calculated over A f degrees.

The actual slope is calculated with linear regression over the last N s average points. The yield point is reached when the slope is less than Py % of the reference slope.

Parameter | Description
--- | ---
Target torque | Must be > 0.
Filter angle | Default: 1. Must be > 0.
Number of samples | Default: 6. Must be >=4.
Number pf samples, reference | Default: 6. Must be >=4.
Yield point percentage | Default: 90%. Must be >20%.
Speed | Default: 60 rpm. Must be > 0.
Speed ramp type | Hard, soft, or manual. Default: Hard. If you select Manual, the Speed ramp field opens.
Speed ramp | If Speed ramp type is Manual, this field opens. Default: 500 rpm/s.
Brake (Valid only for Power Focus 6000 Synchronized tightening, Power Focus 8 Synchronized tightening and Flex). | If On the tool will be stopped when the target is reached. If Off the program goes directly to the next step without stopping the tool.

Point and click on image to see more information:

A | Torque Trigger
B | Number of samples, ref
C | Actual Slope
D | Number of samples
E | Reference Slope
F | Filter Angle