according to DIN IEC 60 352, part 2

(in relation to the conductor cross-section)

conductor cross-section
mm²
conductor cross-section
AWG
pull out force
N
0.05 30 6
0.08 28 11
0.12 26 15
0.14 18
0.22 24 28
0.25 32
0.32 22 40
0.5 20 60
0.75 85
0.82 18 90
1.0 108
1.3 16 135
1.5 150
2.1 14 200
2.5 230
3.3 12 275
4.0 310
5.3 10 355
6.0 360
8.4 8 370
10.0 380