Operation Manual

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11.1 Undercut and Thread Parameters
11.1 Undercut and Thread
Parameters
Undercut DIN 76, Parameters
TURN PLUS determines the parameters for the thread undercut
(undercut DIN 76) from the thread pitch. The undercut parameters are
in accordance with DIN 13 for metric threads.
External thread External thread
Thread pitch I K R W Thread pitch I K R W
0.2 0.3 0.7 0.1 30° 1.25 2 4.4 0.6 30°
0.25 0.4 0.9 0.12 30° 1.5 2.3 5.2 0.8 30°
0.3 0.5 1.05 0.16 30° 1.75 2.6 6.1 1 30°
0.35 0.6 1.2 0.16 30° 2 3 7 1 30°
0.4 0.7 1.4 0.2 30° 2.5 3.6 8.7 1.2 30°
0.45 0.7 1.6 0.2 30° 3 4.4 10.5 1.6 30°
0.5 0.8 1.75 0.2 30° 3.5 5 12 1.6 30°
0.6 1 2.1 0.4 30° 4 5.7 14 2 30°
0.7 1.1 2.45 0.4 30° 4.5 6.4 16 2 30°
0.75 1.2 2.6 0.4 30° 5 7 17.5 2.5 30°
0.8 1.3 2.8 0.4 30° 5.5 7.7 19 3.2 30°
1 1.6 3.5 0.6 30° 6 8.3 21 3.2 30°