牙数
|
螺纹系列代号
|
材料
|
3A① |
最大值 |
最小值 |
2A |
最大值 |
最小值 |
|
36 |
24 |
32 |
24 |
28 |
32 |
20 |
28 |
32 |
18 |
24 |
32 |
16 |
24 |
UNF |
UNC |
UNF |
UNC |
UNF |
UNEF |
UNC |
UNF |
UNEF |
UNC |
UNF |
UNEF |
UNC |
UNF |
3.703 |
4.143 |
4.304 |
4.8 |
4.892 |
4.963 |
5.53 |
5.749 |
5.821 |
7.026 |
7.239 |
7.406 |
8.492 |
8.82 |
3.681 |
4.12 |
4.281 |
4.774 |
4.869 |
4.937 |
5,503 |
5.727 |
5.799 |
6.995 |
7.214 |
7.381 |
8.463 |
8.794 |
3.68 |
4.114 |
4.278 |
4.771 |
4.863 |
4.934 |
5.499 |
5.719 |
5,792 |
6.991 |
7.207 |
7.377 |
8.456 |
8.789 |
3.645 |
4.078 |
4.244 |
4.732 |
4.827 |
4.895 |
5.457 |
5.685 |
5.757 |
6.943 |
7.165 |
7.339 |
8,406 |
8.747 |
|