| 规
格 |
2级用
精度番号 |
饱和率下孔径(mm) |
| 100% |
90% |
80% |
70% |
| W1/16-60 |
4 |
1.33 |
1.35 |
1.38 |
1.40 |
| W3/32-48 |
4 |
2.05 |
2.09 |
2.12 |
2.15 |
| W1/8-40 |
5 |
2.78 |
2.82 |
2.86 |
2.90 |
| W5/32-32 |
6 |
3.48 |
3.53 |
3.58 |
3.62 |
| W3/16-24 |
6 |
4.11 |
4.17 |
4.24 |
4.30 |
| W7/32-24 |
6 |
4.90 |
4.97 |
5.03 |
5.10 |
| W1/4-20 |
6 |
5.56 |
5.64 |
5.72 |
5.80 |
| W5/16-18 |
7 |
7.06 |
7.15 |
7.24 |
7.33 |
| W3/8-16 |
8 |
8.54 |
8.64 |
8.74 |
8.84 |
| W7/16-14 |
8 |
9.99 |
10.10 |
10.21 |
10.33 |
| W1/2-12 |
9 |
11.39 |
11.52 |
11.65 |
11.78 |
| W9/16-12 |
9 |
12.98 |
13.11 |
13.24 |
13.37 |
| W5/8-11 |
9 |
14.44 |
14.59 |
14.73 |
14.87 |
| W3/4-10 |
9 |
17.48 |
17.63 |
17.79 |
17.95 |
|
|
| 规
格 |
A级用
精度番号 |
饱和率下孔径(mm) |
| 100% |
90% |
80% |
70% |
| G(PF)1/8-28 |
6 |
9.17 |
9.22 |
9.28 |
9.33 |
| G(PF)1/4-19 |
8 |
12.33 |
12.41 |
12.49 |
12.58 |
| G(PF)3/8-19 |
8 |
15.83 |
15.92 |
16.00 |
16.08 |
| G(PF)1/2-19 |
9 |
19.83 |
19.94 |
20.06 |
20.17 |
| ﹝注﹞ |
| 1. |
本表的寸法为参考用，请先试着加工后，再决定下孔径。 |
| 2. |
精度番号是以母螺纹的公差 80%为目标做决定。 |
|