精品文献
螺纹接套
NPT螺纹PT螺纹G螺纹和公制螺纹的区别
PS 1/16-28 6.5 6.632 6.49 PT 1/16-28 6.1 6.2 6.244 6.384 PS 1/8-28 8.5 8.637 8.495 PT 1/8-28 8.1 8.2 8.249 8.388 PS 1/4-19 11.4 11.549 11.341 PT 1/4-19 10.7 11 10.962 11.174 PS 3/8-19 15 15.054 14.846 PT 3/8-19 14.2 14.5 14.448 14.658 PS 1/2-14 18.5 18.773 18.489 PT 1/2-14 17.6 18 17.979 18.263 PS 3/4-14 24 24.259 23.975 PT 3/4-14 23 23.5 23.378 23.663 PS 1-11 30.2 30.471 30.111 PT 1-11 29 29.5 29