Диаметры сверл для отверстий под нарезание метрической резьбы
В таблице указаны диаметры сверл и отверстий для нарезания метрической резьбы с крупным шагом.
| Обозначение резьбы | Шаг резьбы, мм | Диаметр сверла под резьбу, мм | Диаметр отверстия под резьбу с полем допуска, мм | ||||
|---|---|---|---|---|---|---|---|
| 4H5H; 5H; 5H6H; 6H; 7H | 6G; 7G | 4H5H; 5H | 5H6H; 6H; 6G | 7H; 7G | |||
| Номинальный | Предельные отклонения | ||||||
| М1 | 0.25 | 0.75 | 0.75 | 0.77 | +0.04 | +0.06 | - |
| М1.1 | 0.25 | 0.85 | 0.85 | 0.87 | +0.04 | +0.06 | - |
| М1.2 | 0.25 | 0.95 | 0.95 | 0.97 | +0.04 | +0.06 | - |
| М1.4 | 0.3 | 1.1 | 1.1 | 1.12 | +0.04 | +0.06 | - |
| М1.6 | 0.35 | 1.25 | 1.25 | 1.27 | +0.05 | +0.07 | - |
| М1.8 | 0.35 | 1.45 | 1.45 | 1.47 | +0.05 | +0.07 | - |
| М2 | 0.4 | 1.6 | 1.6 | 1.62 | +0.06 | +0.08 | - |
| М2.2 | 0.45 | 1.75 | 1.75 | 1.77 | +0.07 | +0.09 | - |
| М2.5 | 0.45 | 2.05 | 2.05 | 2.07 | +0.07 | +0.09 | - |
| М3 | 0.5 | 2.5 | 2.5 | 2.52 | +0.08 | +0.1 | +0.14 |
| М3.5 | 0.6 | 2.9 | 2.9 | 2.93 | +0.08 | +0.11 | +0.15 |
| М4 | 0.7 | 3.3 | 3.3 | 3.33 | +0.08 | +0.12 | +0.16 |
| М4.5 | 0.75 | 3.75 | 3.7 | 3.73 | +0.09 | +0.13 | +0.18 |
| М5 | 0.8 | 4.2 | 4.2 | 4.23 | +0.11 | +0.17 | +0.22 |
| М6 | 1 | 5 | 4.95 | 5 | +0.17 | +0.2 | +0.26 |
| М7 | 1 | 6 | 5.95 | 6 | +0.17 | +0.2 | +0.26 |
| М8 | 1.25 | 6.8 | 6.7 | 6.75 | +0.17 | +0.2 | +0.26 |
| М9 | 1.25 | 7.8 | 7.7 | 7.75 | +0.17 | +0.2 | +0.26 |
| М10 | 1.5 | 8.5 | 8.43 | 8.5 | +0.19 | +0.22 | +0.3 |
| М11 | 1.5 | 9.5 | 9.43 | 9.5 | +0.19 | +0.22 | +0.3 |
| М12 | 1.75 | 10.2 | 10.2 | 10.25 | +0.21 | +0.27 | +0.36 |
| М14 | 2 | 12 | 11.9 | 11.95 | +0.24 | +0.3 | +0.4 |
| М16 | 2 | 14 | 13.9 | 13.95 | +0.24 | +0.3 | +0.4 |
| М18 | 2.5 | 15.5 | 15.35 | 15.4 | +0.3 | +0.4 | +0.53 |
| М20 | 2.5 | 17.5 | 17.35 | 17.4 | +0.3 | +0.4 | +0.53 |
| М22 | 2.5 | 19.5 | 19.35 | 19.4 | +0.3 | +0.4 | +0.53 |
| М24 | 3 | 21 | 20.85 | 20.9 | +0.3 | +0.4 | +0.53 |
| М27 | 3 | 24 | 23.85 | 23.9 | +0.3 | +0.4 | +0.53 |
| М30 | 3.5 | 26.5 | 26.3 | 26.35 | +0.36 | +0.48 | +0.62 |
| М33 | 3.5 | 29.5 | 29.3 | 29.35 | +0.36 | +0.48 | +0.62 |
| М36 | 4 | 32 | 31.8 | 31.85 | +0.36 | +0.48 | +0.62 |
| М39 | 4 | 35 | 34.8 | 34.85 | +0.36 | +0.48 | +0.62 |
| М42 | 4.5 | 37.5 | 37.25 | 37.3 | +0.41 | +0.55 | +0.73 |
| М45 | 4.5 | 40.5 | 40.25 | 40.3 | +0.41 | +0.55 | +0.73 |
| М48 | 5 | 43 | 42.7 | 42.8 | +0.45 | +0.6 | +0.8 |
| М52 | 5 | 47 | 46.7 | 46.8 | +0.45 | +0.6 | +0.8 |