![[pics:title]](/static/upload/image/20230118/1674026803754348.png)
| 螺纹规格 | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | ||||
| d | ||||||||||
| P | 螺距 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |||
| a | 最大值 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |||
| dk | 理论 | 最大值 | 6.3 | 8.2 | 9.4 | 10.4 | 11.5 | 12.6 | ||
| 实际值 | 最大值 | 5.5 | 7.3 | 8.4 | 9.3 | 10.3 | 11.3 | |||
| 最小值 | 5.2 | 6.9 | 8 | 8.9 | 9.9 | 10.9 | ||||
| k | 最大值 | 1.7 | 2.35 | 2.6 | 2.8 | 3 | 3.15 | |||
| r | 最大值 | 1.2 | 1.4 | 1.6 | 2 | 2.2 | 2.4 | |||
| 槽号 | 1 | 2 | 2 | 2 | 3 | 3 | ||||
| M1 | 参考值 | 3.2 | 4.4 | 4.6 | 5.2 | 6.6 | 6.8 | |||
| 深度 | H型 | 最大值 | 2.1 | 2.4 | 2.6 | 3.2 | 3.3 | 3.5 | ||
| 最小值 | 1.7 | 1.9 | 2.1 | 2.7 | 2.8 | 3 | ||||
| M2 | 参考值 | 3.2 | 4.3 | 4.6 | 5.1 | 6.5 | 6.8 | |||
| 深度 | Z型 | 最大值 | 2 | 2.2 | 2.5 | 3.05 | 3.2 | 3.45 | ||
| 最小值 | 1.6 | 1.75 | 2.05 | 2.6 | 2.75 | 3 | ||||
| 钻削范围（板厚） | ≥ | 0.7 | 0.7 | 1.75 | 1.75 | 1.75 | 2 | |||
| ≤ | 1.9 | 2.25 | 3 | 4.4 | 5.25 | 6 | ||||
| Lg (最小值) | - | - | - | - | - | - | ||||
| 千件钢制重≈kg | - | - | - | - | - | - | ||||
