| P
|
Pitch |
| a
|
max |
| dk
|
max |
| min |
| df
|
min |
| d1
|
max |
| min |
| d2
|
max |
| min |
| V
|
max |
| min |
| k
|
max |
| min |
| r
|
max |
|
| 0.5 |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
| 1.25 |
1.75 |
2 |
2.5 |
3.13 |
3.75 |
4.38 |
| 6.37 |
8.45 |
10.45 |
12.55 |
16.55 |
20.65 |
24.65 |
| 5.63 |
7.55 |
9.55 |
11.45 |
15.45 |
19.35 |
23.35 |
| 5.13 |
7.05 |
9.05 |
10.95 |
14.95 |
18.85 |
22.85 |
| 4.98 |
6.48 |
8.08 |
9.58 |
12.7 |
15.7 |
18.7 |
| 4.5 |
6 |
7.5 |
9 |
12 |
15 |
18 |
| 1.15 |
1.45 |
1.75 |
2.05 |
2.65 |
3.25 |
3.9 |
| 0.9 |
1.2 |
1.5 |
1.8 |
2.4 |
3 |
3.6 |
| 0.55 |
0.7 |
0.85 |
1 |
1.3 |
1.6 |
1.9 |
| 0.35 |
0.5 |
0.65 |
0.8 |
1.1 |
1.4 |
1.7 |
| 1.32 |
1.72 |
2.12 |
2.52 |
3.35 |
4.15 |
4.95 |
| 1.07 |
1.47 |
1.87 |
2.27 |
3.05 |
3.85 |
4.65 |
| 0.4 |
0.4 |
0.5 |
0.6 |
0.8 |
0.8 |
0.8 |
|
![英标BS 7670-1 - 1993 BS7670-1 7670-1BS Screws For Resistance Projection Welding [Table 1]](http://img.globalfastener.com/upload/48/pic/2019/06/24/1561352198722549035.jpg)
