Operation Manual

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11.1 Undercut and Thread Parameters
Undercut DIN 509 E, Parameters
The undercut parameters are determined from the cylinder diameter.
Where:
 I: Undercut depth
 K: Undercut width
 R: Undercut radius
 W: Undercut angle
Undercut DIN 509 F, Parameters
The undercut parameters are determined from the cylinder diameter.
Where:
 I: Undercut depth
 K: Undercut width
 R: Undercut radius
 W: Undercut angle
 P: Face depth
 A: Transverse angle
Diameter I K R W
<=1.6 0.1 0.5 0.1 15°
> 1.6 – 3 0.1 1 0.2 15°
> 3 – 10 0.2 2 0. 2 15°
> 10 – 18 0.2 2 0.6 15°
> 18 – 80 0.3 2.5 0.6 15°
> 80 0.4 4 1 15°
Diameter I K R W P A
<=1.6 0.1 0.5 0.1 15° 0.1 8°
> 1.6 – 3 0.1 1 0.2 15° 0.1 8°
> 3 – 10 0.2 2 0.2 15° 0.1 8°
> 10 – 18 0.2 2 0.6 15° 0.1 8°
> 18 – 80 0.3 2.5 0.6 15° 0.2 8°
> 80 0.4 4 1 15° 0.3 8°