ANSI (American Standard) self-tapping A screw |
Specifications |
Number of teeth |
Outer diameter |
|
|
Max |
Minimum |
Rolling diameter |
||
NO: 0 |
40 |
1.52 |
1.44 |
1.17 |
NO: 1 |
32 |
1.90 |
1.82 |
1.47 |
NO: 2 |
32 |
2.23 |
2.13 |
1.78 |
NO: 3 |
28 |
2.56 |
2.46 |
2.10 |
NO: 4 |
24 |
2.89 |
2.79 |
2.25 |
NO: 5 |
20 |
3.30 |
3.20 |
2.60 |
NO: 6 |
18 |
3.58 |
3.45 |
2.80 |
NO: 7 |
16 |
4.01 |
3.86 |
3.10 |
NO: 8 |
15 |
4.26 |
4.11 |
3.30 |
NO:10 |
12 |
4.92 |
4.77 |
3.75 |
NO:12 |
11 |
5.61 |
5.46 |
4.30 |
NO:14 |
10 |
6.45 |
6.29 |
5.05 |
NO:16 |
10 |
7.11 |
6.96 |
5.60 |
NO:18 |
9 |
7.77 |
7.62 |
6.05 |