英制管螺纹
规格 标准径 有效牙部之长 标准长度之使用铰刀时 不用铰刀时 度中螺牙内径 螺牙内 径
PT1\16-28 6.1 6.2 6.244 6.384
PT1\8-28 8.1 8 8.249 8.388
PT1\4-19 10.7 11 10.962 11.174
PT3\8-19 14.2 14.5 14.448 14.685
PT1\2-14 17.6 13 17.979 18.263
PT3\4-14 23 23.5 23.378 23.663
PT1\4-11 29 29.5 29.459 29.822
PT1-1\4-11 37.5 38 37.976 38.339
PT1-1\2-11 43.4 44 43.869 44.232
PT2-2-11 54.9 55.5 55.412 55.844
英制管螺纹 规格 标准径 钻孔径 最大 最小
PS1\16-28 6.5 6.632 6.49
PS1\8-28 8.5 8.687 8.495
Ps1\4-19 11.4 11.549 11.341
PS3\8-19 15 15.054 14.846
PS1\2-14 18.5 18.733 18.489
PS3\4-14 24 24.259 23.975
PS1\4-11 30.2 30.471 30.111
PS1-1\4-11 38.8 39.132 38.772
PS1-1\2-11 44.8 45.025 44.665
PS2-1\2-11 56.5 56.836 56.476