| P
|
Pitch |
| dk
|
max=nominal size |
| min |
| k
|
Nominal Size |
| max |
| min |
| R
|
≈ |
| n
|
max |
| min=nominal size |
| t
|
Nominal Size |
| max |
| min |
| r
|
min |
| da
|
max |
|
| 0.4 |
0.45 |
0.5 |
0.6 |
0.7 |
0.8 |
1 |
1.25 |
| 4.5 |
5.7 |
6.9 |
8.1 |
9.4 |
11.8 |
14 |
17.8 |
| 4.1 |
5.3 |
6.4 |
7.6 |
8.9 |
11.2 |
13.3 |
17 |
| 1.2 |
1.5 |
1.9 |
2.2 |
2.5 |
3.1 |
3.7 |
4.8 |
| 1.3 |
1.6 |
2.05 |
2.35 |
2.65 |
3.25 |
3.9 |
5 |
| 1.1 |
1.4 |
1.75 |
2.05 |
2.35 |
2.95 |
3.5 |
4.6 |
| 3 |
3.7 |
4.6 |
5.4 |
6.10 |
7.7 |
9.1 |
11.7 |
| 0.75 |
0.95 |
0.95 |
1.15 |
1.15 |
1.4 |
1.4 |
1.8 |
| 0.6 |
0.8 |
0.8 |
1 |
1 |
1.2 |
1.2 |
1.6 |
| 0.6 |
0.75 |
0.95 |
1.1 |
1.25 |
1.6 |
1.9 |
2.4 |
| 0.7 |
0.85 |
1.1 |
1.25 |
1.45 |
1.85 |
2.2 |
2.8 |
| 0.5 |
0.65 |
0.8 |
0.95 |
1.05 |
1.35 |
1.6 |
2 |
| 0.1 |
0.1 |
0.1 |
0.1 |
0.2 |
0.2 |
0.25 |
0.4 |
| 2.6 |
3.1 |
3.6 |
4.1 |
4.7 |
5.7 |
6.8 |
9.2 |
|
![Slotted Mushroom Head Screws with B.S.W. & B.S.F. Threads [Table 8]](http://img.globalfastener.com/upload/48/pic/2020/08/04/1596505917560951055.jpg)
