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:
“Pan’s Syrinx was a girl indeed,
Though now she’s turned into a reed;
From that dear reed Pan’s pipe does come,
A pipe that strikes Apollo dumb;
Nor flute, nor lute, nor gittern can
So chant it, as the pipe of Pan;”
—John Lyly (1553–1606)
“Fate forces its way to the powerful and violent. With subservient obedience it will assume for years dependency on one individual: Caesar, Alexander, Napoleon, because it loves the elemental human being who grows to resemble it, the intangible element. Sometimes, and these are the most astonishing moments in world history, the thread of fate falls into the hands of a complete nobody but only for a twitching minute.”
—Stefan Zweig (18811942)
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