ISO 7040
ISO 7040, Prevailing Torque Type Hexagon Lock Nut with Non-metallic Insert / Nylon Insert Lock Nuts Standard
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ISO 7040, Prevailing Torque Type Hexagon Lock Nut with Non-metallic Insert / Nylon Insert Lock Nuts as below:
| Size | e min. | h max | h min. | m min. | s max | s min. |
| M5 | 8.79 | 6.3 | 6 | 4.4 | 8 | 7.78 |
| M6 | 11.05 | 8 | 7.7 | 4.9 | 10 | 9.78 |
| M7 | 12.12 | 8.5 | 8.2 | 6.14 | 11 | 10.73 |
| M8 | 14.38 | 9.5 | 9.14 | 6.44 | 13 | 12.73 |
| M10 | 18.9 | 11.5 | 11.14 | 8.04 | 17 | 16.73 |
| M12 | 21.1 | 14 | 13.64 | 10.37 | 19 | 19.67 |
| M14 | 24.49 | 16 | 15.3 | 12.1 | 22 | 21.67 |
| M16 | 26.75 | 18 | 17.3 | 14.1 | 24 | 23.67 |
| M18 | 29.56 | 20 | 19.16 | 15.1 | 27 | 26.16 |
| M20 | 32.95 | 22 | 20.7 | 16.9 | 30 | 29.16 |
| M22 | 35.03 | 25 | 23.7 | 18.1 | 32 | 31 |
| M24 | 29.55 | 28 | 26.7 | 20.2 | 36 | 35 |