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References  Table
of pitch for UNF (fine) threads |
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| Size |
Major Diameter |
Threads Per |
| Inches |
Inch |
| 0 |
0.06 |
80 |
| 1* |
0.073 |
72 |
| 2 |
0.086 |
64 |
| 3* |
0.099 |
56 |
| 4 |
0.112 |
48 |
| 5 |
0.125 |
44 |
| 6 |
0.138 |
40 |
| 8 |
0.164 |
36 |
| 10 |
0.19 |
32 |
| 12* |
0.216 |
28 |
| 1/4 |
0.25 |
28 |
| 5/16 |
0.3125 |
24 |
| 3/8 |
0.375 |
24 |
| 7/16 |
0.4375 |
20 |
| 1/2 |
0.5 |
20 |
| 9/16 |
0.5625 |
18 |
| 5/8 |
0.625 |
18 |
| 3/4 |
0.75 |
16 |
| 7/8 |
0.875 |
14 |
| 1 |
1 |
12 |
| 1 1/8 |
1.125 |
12 |
| 1 1/4 |
1.25 |
12 |
| 1 3/8 |
1.375 |
12 |
| 1 1/2 |
1.5 |
12 |
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| Table
of pitch for UNF (fine) threads | Table
of pitch for ISO Metric Coarse Threads |
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