Shanghai Summery Industrial Machine Co. , Ltd.
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This International Standard specifies the characteristics of flange hexagon bolts ,with product grade A, with threads from M5 up to and including M16,length from 10mm to 200mm,and property classes 8.8, 9.8, 10.9 and A2-70,A4-70.
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If you are looking for flange head screws, please contact us for further information.
| Minimum breaking torques | |||||
| Thread | Pitch (mm) | Minimum breaking torque (N.m) | |||
| Property class | |||||
| 8.8 | 9.8 | 10.9 | 12.9 | ||
| M2 | 0.40 | 0.37 | 0.4 | 0.45 | 0.5 |
| M2.5 | 0.45 | 0.82 | 0.9 | 1 | 1.1 |
| M3 | 0.50 | 1.5 | 1.7 | 1.9 | 2.1 |
| M3.5 | 0.60 | 2.4 | 2.7 | 3 | 3.3 |
| M4 | 0.70 | 3.6 | 3.9 | 4.4 | 4.9 |
| M5 | 0.80 | 7.6 | 8.3 | 9.3 | 10 |
| M6 | 1.00 | 13 | 14 | 16 | 17 |
| M7 | 1.00 | 23 | 25 | 28 | 31 |
| M8 | 1.25 | 33 | 36 | 40 | 44 |
| M8x1.0 | 1.00 | 38 | 42 | 46 | 52 |
| M10 | 1.50 | 66 | 72 | 81 | 90 |
| M10x1.0 | 1.00 | 84 | 92 | 102 | 114 |
| M10x1.25 | 1.25 | 75 | 82 | 91 | 102 |