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絲攻加工下孔徑選用表 |
梅華 |
SM針車牙螺紋 |
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螺紋尺寸 |
建議孔徑 |
最小直徑 |
最大直徑 |
1/16 - 80 | 1.24 |
1.21 |
1.28 |
5/64 - 64 | 1.55 |
1.51 |
1.60 |
3/32 -100 | 2.10 |
2.08 |
2.13 |
3/32 - 56 | 1.88 |
1.84 |
1.94 |
1/8 - 48 | 2.59 |
2.54 |
2.66 |
1/8 - 44 | 2.54 |
2.49 |
2.61 |
1/8 - 40 | 2.48 |
2.42 |
2.56 |
9/64 - 40 | 2.87 |
2.82 |
2.95 |
11/64 - 40 | 3.67 |
3.61 |
3.75 |
11/64 - 32 | 3.49 |
3.42 |
3.59 |
3/16 - 40 | 4.06 |
4.01 |
4.14 |
3/16 - 32 | 3.89 |
3.82 |
3.99 |
3/16 - 28 | 3.76 |
3.68 |
3.88 |
3/16 - 24 | 3.60 |
3.50 |
3.73 |
13/16 - 24 | 4.00 |
3.90 |
4.13 |
7/32 - 32 | 4.62 |
4.55 |
4.73 |
15/64 - 28 | 4.96 |
4.87 |
5.07 |
1/4 - 40 | 5.65 |
5.59 |
5.73 |
1/4 - 28 | 5.35 |
5.27 |
5.47 |
1/4 - 24 | 5.19 |
5.09 |
5.32 |
9/32 - 28 | 6.15 |
6.06 |
6.26 |
9/32 - 20 | 5.75 |
5.63 |
5.91 |
5/16 - 28 | 6.94 |
6.86 |
7.05 |
5/16 - 24 | 6.77 |
6.68 |
6.91 |
5/16 - 18 | 6.39 |
6.26 |
6.56 |
11/32 - 28 | 7.73 |
7.65 |
7.85 |
3/8 - 28 | 8.53 |
8.44 |
8.64 |
3/8 - 18 | 7.97 |
7.84 |
8.15 |
7/16 - 28 | 10.11 |
10.03 |
10.23 |
7/16 - 16 | 9.37 |
9.22 |
9.57 |
1/2 - 28 | 11.70 |
11.62 |
11.82 |
1/2 - 20 | 11.30 |
11.19 |
11.46 |
1/2 - 12 | 10.37 |
10.18 |
10.64 |
9/16 - 20 | 12.89 |
12.78 |
13.05 |