BSW Webster thread type cylindrical thread/coarse thread 2A (aspect angle 55 °) |
Specifications |
Tooth |
Outer diameter |
Rolling diameter |
||
Max |
Minimum |
Max |
Minimum |
||
1/8 |
40 |
3.15 |
3.03 |
2.72 |
2.70 |
5/32 |
32 |
3.95 |
3.79 |
3.40 |
3.38 |
3/16 |
24 |
4.73 |
4.59 |
4.03 |
4.00 |
1/4 |
20 |
6.32 |
6.16 |
5.48 |
5.45 |
5/16 |
18 |
7.90 |
7.74 |
6.97 |
6.94 |
3/8 |
16 |
9.49 |
9.31 |
8.44 |
8.40 |
7/16 |
14 |
11.07 |
10.88 |
9.88 |
9.84 |
1/2 |
12 |
12.66 |
12.46 |
11.27 |
11.22 |
9/16 |
12 |
14.25 |
14.04 |
12.86 |
12.81 |
5/8 |
11 |
15.83 |
15.61 |
14.33 |
14.27 |
3/4 |
10 |
19.00 |
18.77 |
17.34 |
17.28 |
7/8 |
9 |
22.22 |
21.80 |
20.34 |
20.28 |
1" |
8 |
25.40 |
25.13 |
23.29 |
23.23 |