BA British Association thread (Asan angle: 47.5°) |
Specifications |
Tooth distance (P) |
Outer diameter (D) |
Rolling diameter |
||
Max |
Minimum |
Max |
Minimum |
||
0BA |
1.0 |
5.97 |
5.78 |
5.33 |
5.28 |
1BA |
0.9 |
5.27 |
5.10 |
4.70 |
4.65 |
2BA |
0.81 |
4.67 |
4.52 |
4.15 |
4.11 |
3BA |
0.73 |
4.07 |
3.94 |
3.60 |
3.56 |
4BA |
0.66 |
3.57 |
3.45 |
3.15 |
3.12 |
5BA |
0.59 |
3.17 |
3.05 |
2.79 |
2.76 |
6BA |
0.53 |
2.77 |
2.67 |
2.43 |
2.40 |
7BA |
0.48 |
2.47 |
2.38 |
2.17 |
2.14 |
8BA |
0.43 |
2.17 |
2.09 |
1.91 |
1.88 |