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单位:英寸(inch)
| (inch) | P | dk max | dk min | k |
|---|---|---|---|---|
| #4 | 40|48 | 0.187 | 0.167 | 0.052 |
| #5 | 40|44 | 0.212 | 0.191 | 0.052 |
| #6 | 32|40|48 | 0.237 | 0.215 | 0.052 |
| #8 | 32|36 | 0.212 | 0.191 | 0.06 |
| #10 | 24|32 | 0.312 | 0.285 | 0.069 |
| #12 | 24|28|32 | 0.412 | 0.38 | 0.075 |
| #14 | -- | 0.362 | 0.333 | 0.08 |
| 1/4 | 20|28|32 | 0.362 | 0.333 | 0.08 |
| 5/16 | 18|24|32 | 0.312 | 0.285 | 0.085 |
| 3/8 | 16|24|32 | 0.597 | 0.556 | 0.155 |