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发布日期：2024-04-09 浏览次数：
标准类型：BS/英国
标准号：BS 275-1927
单位：英寸（inch） 规格：1/2~1-3/4
| (inch) | k | dk | a |
|---|---|---|---|
| 1/2 | 0.350 | 0.8 | 0.250 |
| 9/16 | 0.394 | 0.9 | 0.281 |
| 5/8 | 0.438 | 1.0 | 0.313 |
| 11/16 | 0.481 | 1.1 | 0.344 |
| 3/4 | 0.525 | 1.2 | 0.375 |
| 13/16 | 0.569 | 1.3 | 0.406 |
| 7/8 | 0.613 | 1.4 | 0.438 |
| 15/16 | 0.656 | 1.5 | 0.469 |
| 1 | 0.700 | 1.6 | 0.500 |
| 1-1/16 | 0.744 | 1.7 | 0.531 |
| 1-1/8 | 0.788 | 1.8 | 0.563 |
| 1-3/16 | 0.831 | 1.9 | 0.594 |
| 1-1/4 | 0.875 | 2.0 | 0.625 |
| 1-5/16 | 0.919 | 2.1 | 0.656 |
| 1-3/8 | 0.963 | 2.2 | 0.688 |
| 1-7/16 | 1.006 | 2.3 | 0.719 |
| 1-1/2 | 1.050 | 2.4 | 0.750 |
| 1-9/16 | 1.094 | 2.5 | 0.781 |
| 1-5/8 | 1.138 | 2.6 | 0.813 |
| 1-3/4 | 1.225 | 2.8 | 0.875 |
