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| 存在正负公差特别在意者甚拍,螺母、平垫圈、挡圈等尺寸:以配套使用的螺丝的直径(粗细)为准单位:mm | |||||
| 公称直径D | 螺距P | m | S | ||
| max | min | max | min | ||
| M2 | 0.4 | 1.6 | 1.35 | 4 | 3.82 |
| M2.5 | 0.45 | 2 | 1.75 | 5 | 4.82 |
| M3 | 0.5 | 2.5 | 2.2 | 5.5 | 5.32 |
| M4 | 0.7 | 3.2 | 2.9 | 7 | 6.7 |
| M5 | 0.8 | 4 | 3.7 | 8 | 7.7 |
| M6 | 1 | 5.3 | 4.9 | 10 | 9.78 |
| M8 | 1.25 | 7 | 6.5 | 13 | 12.7 |
| M10 | 1.5 | 8.5 | 8 | 16 | 15.7 |
| M12 | 1.75 | 10.8 | 10.3 | 18 | 17.7 |
| M14 | 2 | 12.6 | 12.1 | 21.5 | 21 |
| M16 | 1.5/2 | 14.5 | 14 | 24 | 23.67 |
| M18 | 1.5/2/2.5 | 15.5 | 15 | 27 | 26.16 |
| M20 | 1.5/2/2.5 | 18 | 17.5 | 30 | 29 |
| M22 | 1.5/2/2.5 | 18 | 17.4 | 32 | 31.3 |
| M24 | 2/3 | 20 | 19.5 | 36 | 35 |
| M27 | 2/3 | 23.5 | 23 | 41 | 40 |
| M30 | 2/3.5 | 26 | 25 | 46 | 45 |