It covers the proper torquing or checking the degree of torquing of bolted production of any diameter according to EN 1090-2 standard.
Control principle; By placing a mark on the nut part of the tightened bolts, the main material and the nut, the torque meter is based on the nut control process by adjusting to the desired torque values (EN 1090-1 or Customer Specification).
If the angle between the marks is less than 30 °, the torquing is within the acceptable values. If it is between 30 ° and 45 °, 2 more bolts from the same group should be checked. If an angle greater than 45 ° is detected, the bolt is changed and 2 more bolts from the same group should be checked.
| BULON QUALITY | BULON DIAMETERS | |||||||
| M12 | M16 | M20 | M22 | M24 | M27 | M30 | M36 | |
| 8.8 (Nm) | 90 | 205 | 431 | 571 | 731 | 1070 | 1480 | |
| 10.9 (Nm) | 127 | 288 | 607 | 803 | 1030 | 1500 | 2080 | 3800 |
| 12.9 (Nm) | 153 | 346 | 728 | 964 | 1230 | 1800 | 2490 |
Tablo.1
