Pipe Thread Sizes
| Nominal pipe size (in) | Pipe outer diameter | Threads per inch | Thread pitch |
|---|---|---|---|
| 1⁄16 | 0.3125 in (7.94 mm) | 27 | 0.03704 in (0.94082 mm) |
| 1⁄8 | 0.405 in (10.29 mm) | 27 | 0.03704 in (0.94082 mm) |
| 1⁄4 | 0.540 in (13.72 mm) | 18 | 0.05556 in (1.41122 mm) |
| 3⁄8 | 0.675 in (17.15 mm) | 18 | 0.05556 in (1.41122 mm) |
| 1⁄2 | 0.840 in (21.34 mm) | 14 | 0.07143 in (1.81432 mm) |
| 3⁄4 | 1.050 in (26.67 mm) | 14 | 0.07143 in (1.81432 mm) |
| 1 | 1.315 in (33.40 mm) | 11 1⁄2 | 0.08696 in (2.20878 mm) |
| 1 1⁄4 | 1.660 in (42.16 mm) | 11 1⁄2 | 0.08696 in (2.20878 mm) |
| 1 1⁄2 | 1.900 in (48.26 mm) | 11 1⁄2 | 0.08696 in (2.20878 mm) |
| 2 | 2.375 in (60.33 mm) | 11 1⁄2 | 0.08696 in (2.20878 mm) |
| 2 1⁄2 | 2.875 in (73.03 mm) | 8 | 0.12500 in (3.175 mm) |
| 3 | 3.500 in (88.90 mm) | 8 | 0.12500 in (3.175 mm) |
| 4 | 4.500 in (114.30 mm) | 8 | 0.12500 in (3.175 mm) |
| 5 | 5.563 in (141.30 mm) | 8 | 0.12500 in (3.175 mm) |
| 6 | 6.625 in (168.28 mm) | 8 | 0.12500 in (3.175 mm) |
| 10 | 10.750 in (273.05 mm) | 8 | 0.12500 in (3.175 mm) |
| 12 | 12.750 in (323.85 mm) | 8 | 0.12500 in (3.175 mm) |
| 14 | 14 in (355.60 mm) | 8 | 0.12500 in (3.175 mm) |
| 16 | 16 in (406.40 mm) | 8 | 0.12500 in (3.175 mm) |
| 18 | 18 in (457.20 mm) | 8 | 0.12500 in (3.175 mm) |
| 20 | 20 in (508.00 mm) | 8 | 0.12500 in (3.175 mm) |
| 24 | 24 in (609.60 mm) | 8 | 0.12500 in (3.175 mm) |
Read more about this topic: National Pipe Thread
Famous quotes containing the words pipe and/or thread:
“It is not that the Englishman can’t feel—it is that he is afraid to feel. He has been taught at his public school that feeling is bad form. He must not express great joy or sorrow, or even open his mouth too wide when he talks—his pipe might fall out if he did.”
—E.M. (Edward Morgan)
“We construct a narrative for ourselves, and that’s the thread that we follow from one day to the next. People who disintegrate as personalities are the ones who lose that thread.”
—Paul Auster (b. 1947)
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