英制粗牙 BSW Machine Screw class2 (55°) (mm) |
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规格 |
牙数 |
外径 |
中径 |
材料径 |
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基准 |
最大 |
最小 |
基准 |
最大 |
最小 |
最大 |
最小 |
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1/8 |
40 |
3.175 |
3.155 |
3.045 |
2.768 |
2.738 |
2.664 |
2.723 |
2.686 |
3/16 |
24 |
4.762 |
4.742 |
4.592 |
4.084 |
4.054 |
3.965 |
4.049 |
4.004 |
1/4 |
20 |
6.350 |
6.330 |
6.160 |
5.537 |
5.507 |
5.408 |
5.501 |
5.452 |
5/16 |
18 |
7.938 |
7.910 |
7.720 |
7.034 |
7.000 |
6.894 |
6.992 |
6.939 |
3/8 |
16 |
9.525 |
9.501 |
9.310 |
8.508 |
8.473 |
8.359 |
8.464 |
8.407 |
7/16 |
14 |
11.112 |
11.082 |
11.892 |
9.950 |
9.914 |
9.792 |
9.907 |
9.846 |
1/2 |
12 |
12.700 |
12.670 |
12.460 |
11.345 |
11.306 |
11.173 |
11.303 |
11.237 |
9/16 |
12 |
14.287 |
14.258 |
14.047 |
12.932 |
12.890 |
12.756 |
12.882 |
12.815 |
5/8 |
11 |
15.875 |
15.848 |
15.605 |
14.396 |
14.354 |
14.211 |
14.347 |
14.275 |
11/16 |
11 |
17.462 |
17.435 |
17.198 |
15.983 |
15.941 |
15.794 |
15.928 |
15.855 |
3/4 |
10 |
19.050 |
19.020 |
18.780 |
17.424 |
17.379 |
17.226 |
17.369 |
17.293 |
7/8 |
9 |
22.225 |
22.195 |
21.935 |
20.418 |
20.419 |
20.257 |
20.410 |
20.329 |
1 |
8 |
25.400 |
25.370 |
25.110 |
23.367 |
23.368 |
23.195 |
23.362 |
23.276 |