ANSI (American Standard) Self-Tapping AB Screws |
Specifications |
Number of teeth |
Outer diameter |
Rolling diameter |
|
Maximum |
Minimum |
|||
NO:0 |
48 |
1.52 |
1.45 |
1.20 |
NO:1 |
42 |
1.90 |
1.82 |
1.55 |
NO:2 |
32 |
2.23 |
2.08 |
1.78 |
NO:3 |
28 |
2.56 |
2.46 |
2.05 |
NO:4 |
24 |
2.89 |
2.74 |
2.25 |
NO:5 |
20 |
3.30 |
3.20 |
2.60 |
NO:6 |
20 |
3.53 |
3.35 |
2.80 |
NO:7 |
19 |
3.91 |
3.78 |
3.15 |
NO:8 |
18 |
4.21 |
4.04 |
3.35 |
NO:10 |
16 |
4.80 |
4.62 |
3.80 |
NO:12 |
14 |
5.46 |
5.31 |
4.35 |
1/4 |
14 |
6.25 |
6.02 |
5.15 |
5/16 |
12 |
8.00 |
7.82 |
6.70 |