安装美制螺纹(也叫统一螺纹)钢丝螺套请按以下表格中尺寸选择钻头直径:
美制螺套安装切削丝锥钻头选择参照表 |
美制粗牙UNC |
美制细牙UNF |
螺纹规格 |
钻头直径(mm) |
螺纹规格 |
钻头直径(mm) |
2-56 0.086-56 |
2.4 |
4-48 0.112-48 |
3.0 |
4-40 0.112-40 |
3.0 |
6-40 0.138-40 |
3.8 |
5-40 0.125-40 |
3.4 |
8-36 0.164-36 |
4.4 |
6-32 0.138-32 |
3.7 |
10-32 0.190-32 |
5.1 |
8-32 0.164-32 |
4.4 |
1/4"-28 |
6.6 |
10-24 0.190-24 |
5.1 |
5/16"-24 |
8.2 |
12-24 0.216-24 |
5.8 |
3/8"-24 |
9.8 |
1/4"-20 |
6.7 |
7/16"-20 |
11.5 |
5/16"-18 |
8.4 |
1/2"-20 |
13.1 |
3/8"-16 |
9.9 |
9/16"-18 |
14.7 |
7/16"-14 |
11.6 |
5/8"-18 |
16.3 |
1/2"-13 |
13.1 |
3/4"-16 |
19.5 |
9/16"-12 |
14.9 |
7/8"-14 |
22.7 |
5/8"-11 |
16.6 |
1"-14 |
25.9 |
3/4"-10 |
19.6 |
1"-12 |
26.0 |
7/8"-9 |
23.1 |
1 1/8"-12 |
29.2 |
1"-8 |
26.1 |
1 1/4"-12 |
32.4 |
1 1/8"-7 |
29.7 |
1 3/8"-12 |
35.6 |
1 1/4"-7 |
32.8 |
1 1/2"-12 |
38.7 |
1 3/8"-6 |
36.2 |
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1 1/2"-6 |
39.4 |
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注:以上钻头直径只适合于安装钢丝螺套所用丝锥是直槽和螺旋槽等切削丝锥的情况,不适合于挤压丝锥。
相关链接:
安装钢丝螺套用钻头
钢丝螺套丝锥的选择
钢丝螺套产品
钢丝螺套安装方法
美制统一螺纹相关知识
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