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选择组合系列、中等级外螺纹的公差 0.001in |
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牙数 |
中 径 公 差 |
大径 公差 |
小径 公差 |
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公称 直径 |
＞ |
1/8 |
1/4 |
1/2 |
3/4 |
11/4 |
2 |
3 |
4 |
6 |
8 |
11 |
15 |
在中径公 差再加上 下列数据 |
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|
≤ |
1/4 |
1/2 |
3/4 |
11/4 |
2 |
3 |
4 |
6 |
8 |
11 |
15 |
20 |
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40，36 |
|
3.7 |
4.0 |
4.2 |
4.5 |
4.9 |
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1.7 |
3.3 |
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32，28 |
3.8 |
4.1 |
4.3 |
4.6 |
5.0 |
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|
1.9 |
3.8 |
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|
26，24 |
4.1 |
4.4 |
4.7 |
5.0 |
5.4 |
5.7 |
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|
2.0 |
4.1 |
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|
20 |
|
4.5 |
4.8 |
5.1 |
5.5 |
5.8 |
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2.2 |
4.5 |
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|
18，16 |
|
5.1 |
5.3 |
5.6 |
6.0 |
6.3 |
6.7 |
7.0 |
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2.5 |
5.0 |
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|
14，12 |
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|
6.0 |
6.2 |
6.6 |
7.0 |
7.3 |
7.7 |
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|
2.9 |
5.8 |
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11，10 |
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|
6.4 |
6.7 |
7.1 |
7.4 |
7.8 |
8.2 |
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|
3.2 |
6.3 |
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|
8 |
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|
7.1 |
7.5 |
7.8 |
8.2 |
8.5 |
8.9 |
9.4 |
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3.5 |
7.1 |
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|
6 |
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|
8.4 |
8.7 |
9.0 |
9.4 |
9.8 |
10.2 |
10.7 |
|
4.1 |
8.2 |
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4 |
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|
10.0 |
10.3 |
10.7 |
11.1 |
11.5 |
11.9 |
12.4 |
5.0 |
10.0 |
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