| MODEL
ENGINEER THREADS |
|||||||||||
| DIA |
BA (47.1/2o) |
|
DIA |
ME (55o) |
|
BSB (55o) |
|||||
| Sizes |
Dia |
Pitch |
TPI |
Drill |
|
Sizes in inches |
TPI |
Drill |
|
TPI |
Drill |
| 0 |
6.0 |
1.0 |
25.4 |
5.1 |
|
1/8 |
40 |
2.55 |
|
|
|
| 1 |
5.3 |
0.9 |
28.2 |
4.5 |
|
5/32 |
32 |
3.2 |
|
|
|
| 2 |
4.7 |
0.81 |
31.4 |
4.0 |
|
5/32 |
40 |
3.3 |
|
|
|
| 3 |
4.1 |
0.73 |
34.8 |
3.4 |
|
3/16 |
32 |
4.0 |
|
|
|
| 4 |
3.6 |
0.66 |
38.5 |
3.0 |
|
3/16 |
40 |
4.0 |
|
|
|
| 5 |
3.2 |
0.59 |
43.0 |
2.65 |
|
7/32 |
32 |
|
|
|
|
| 6 |
2.8 |
0.53 |
47.9 |
2.3 |
|
7/32 |
40 |
4.8 |
|
|
|
| 7 |
2.5 |
0.48 |
52.9 |
2.05 |
|
1/4 |
32 |
5.5 |
|
26 |
5.3 |
| 8 |
2.2 |
0.43 |
59.1 |
1.8 |
|
1/4 |
40 |
5.5 |
|
|
|
| 9 |
1.9 |
0.39 |
65.1 |
1.55 |
|
9/32 |
32 |
6.1 |
|
26 |
6.1 |
| 10 |
1.7 |
0.35 |
72.6 |
1.4 |
|
9/32 |
40 |
|
|
|
|
| 11 |
1.5 |
0.31 |
81.9 |
1.2 |
|
5/16 |
32 |
7.0 |
|
26 |
5.8 |
| 12 |
1.3 |
0.28 |
90.9 |
1.05 |
|
5/16 |
40 |
7.3 |
|
|
|
| 13 |
1.2 |
0.25 |
102.0 |
0.98 |
|
3/8 |
32 |
8.6 |
|
26 |
8.4 |
| 14 |
1.0 |
0.23 |
109.9 |
0.80 |
|
3/8 |
40 |
8.9 |
|
|
|
| 15 |
0.9 |
0.21 |
120.5 |
0.70 |
|
7/16 |
32 |
10.3 |
|
26 |
10 |
| 16 |
0.79 |
0.19 |
133.3 |
0.60 |
|
7/16 |
40 |
10.5 |
|
|
|
|
|
|
|
|
|
|
1/2 |
32 |
11.9 |
|
26 |
11.5 |
|
|
|
|
|
|
|
9/16 |
|
|
|
26 |
13.1 |
|
|
|
|
|
|
|
5/8 |
|
|
|
26 |
14.7 |
|
|
|
|
|
|
|
3/4 |
|
|
|
26 |
17.8 |