Factor K for calculating the tightening torque
|
Nominal
thread diameter1) |
Factor K | |
| for | ||
| precision lock nuts | end plate bolts | |
| M 4 | – | 0,8 |
| M 5 | – | 1 |
| M 6 | – | 1,2 |
| M 8 | – | 1,6 |
| M 10 | 1,4 | 2 |
| M 12 | 1,6 | 2,4 |
| M 14 | 1,9 | 2,7 |
| M 15 | 2 | 2,9 |
| M 16 | 2,1 | 3,1 |
| M 17 | 2,2 | – |
| M 20 | 2,6 | – |
| M 25 | 3,2 | – |
| M 30 | 3,9 | – |
| M 35 | 4,5 | – |
| M 40 | 5,1 | – |
| M 45 | 5,8 | – |
| M 50 | 6,4 | – |
| M 55 | 7 | – |
| M 60 | 7,6 | – |
| M 65 | 8,1 | – |
| M 70 | 9 | – |
| M 75 | 9,6 | – |
| M 80 | 10 | – |
| M 85 | 11,0 | – |
| M 90 | 11 | – |
| M 95 | 12 | – |
| M 100 | 12 | – |
| M 105 | 13 | – |
| M 110 | 14 | – |
| M 120 | 15 | – |
| M 130 | 16 | – |
| M 140 | 17 | – |
| M 150 | 18 | – |
| M 160 | 19 | – |
| M 170 | 21 | – |
| M 180 | 22 | – |
| M 190 | 23 | – |
| M 200 | 24 | – |
| M 220 | 26 | – |
| M 240 | 27 | – |
| M 260 | 29 | – |
| M 280 | 32 | – |
| M 300 | 34 | – |
| M 320 | 36 | – |
| M 340 | 38 | – |
| M 360 | 40 | – |
- 1) Applicable for fine threads only
