三针介绍:
1、材质:轴承钢GCr15long8、SKD11long8long8、高速钢HSS6542long8、钨钢YG8long8、陶瓷long8long8long8。
2long8long8、粗糙度:Ra≤0.20,热处理:60~62HRC ,长度:50.8mm
3long8、精度级别:±0.002mmlong8、±0.001mm、±0.0005mmlong8,±0.00001in,long8long8,±0.00002in
公称直径(mm) |
螺纹标准 Thread Standard |
Nominal Size |
公制螺纹 Metric Thread |
英制螺纹 Threads per inch |
梯形螺纹Trapezoidal thread |
60° |
55° |
60° |
25° |
0.118 |
0.2 |
- |
- |
- |
(0.225) |
- |
- |
- |
0.142 |
0.25 |
- |
- |
- |
0.185 |
0.3 |
- |
- |
- |
- |
- |
80 |
- |
0.35 |
- |
72 |
- |
0.250 |
0.4 |
- |
64 |
- |
0.45 |
- |
56 |
- |
0.291 |
0.5 |
- |
48 |
- |
0.343 |
0.6 |
- |
- |
- |
- |
- |
44 |
- |
- |
- |
40 |
- |
0.433 |
0.7 |
- |
- |
|
0.75 |
- |
36 |
- |
0.8 |
- |
32 |
- |
0.511 |
- |
- |
28 |
- |
0.572 |
1 |
- |
27 |
- |
- |
- |
26 |
- |
- |
- |
24 |
- |
0.724 |
1.25 |
20 |
20 |
- |
0.796 |
- |
18 |
18 |
- |
0.866 |
1.5 |
16 |
16 |
- |
1.008 |
1.75 |
14 |
14 |
- |
- |
- |
- |
2 |
1.157 |
2 |
12 |
13 |
- |
- |
- |
12 |
- |
1.302 |
- |
11 |
11 1/2 |
2 |
- |
- |
11 |
|
1.441 |
2.5 |
10 |
10 |
- |
1.553 |
- |
9 |
9 |
3 |
1.732 |
3 |
- |
- |
3 |
1.833 |
- |
8 |
8 |
- |
2.050 |
3.5 |
7 |
7 1/2 |
4 |
- |
- |
7 |
- |
2.311 |
4 |
6 |
6 |
4 |
2.595 |
4.5 |
- |
5 1/2 |
5 |
2.886 |
5 |
5 |
5 |
5 |
3.106 |
|
- |
- |
6 |
3.177 |
5.5 |
4 1/2 |
4 1/2 |
6 |
3.550 |
6 |
4 |
4 |
- |
4.120 |
- |
3 1/2 |
- |
8 |
4.400 |
- |
3 1/2 |
- |
8 |
4.773 |
-- |
3 |
- |
- |
5.150 |
|
- |
- |
10 |
6.212 |
|
- |
- |
12 | |