|
螺纹 |
长度 |
对边的大小 |
形式 |
|
1/4-28" |
19mm |
7mm |
UNF |
|
5/16-24" |
21mm |
10mm |
UNF |
|
3/8-24" |
21mm |
11mm |
UNF |
|
7/16-20" |
25mm |
12mm |
UNF |
|
1/2-20" |
30mm |
14mm |
UNF |
|
9/16-18" |
34mm |
15mm |
UNF |
|
5/8-18" |
25mm |
17mm |
UNF |
