| DASH SIZE | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 14 | 16 | 20 | 24 | 32 | 40 | 48 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NPTF Pipe Thread | 1/8–27 | 1/4–18 | 3/8–18 | 1/2–14 | 3/4–14 | 1–11-1/2 | 1-1/4–11-1/2 | 1-1/2–11-1/2 | 2–11-1/2 | 2-1/2–8 | 3–8 | |||||
| NPSM Swivel Thread | 1/8–27 | 1/4–18 | 3/8–18 | 1/2–14 | 3/4–14 | 1–11-1/2 | 1-1/4–11-1/2 | 1-1/2–11-1/2 | 2–11-1/2 | |||||||
| JIC 37° Flare Thread | 5/16–24 | 3/8–24 | 7/16–20 | 1/2–20 | 9/16–18 | 3/4–16 | 7/8–14 | 1-1/16–12 | 1-3/16–12 | 1-5/16–12 | 1-5/8–12 | 1-7/8–12 | 2-1/2–12 | 3–12 | 3-1/2–12 | |
| SAE 45° Flare Thread | 5/16–24 | 3/8–24 | 7/16–20 | 1/2–20 | 5/8–18 | 11/16–16 | 3/4–16 | 7/8–14 | 1-1/16–14 | |||||||
| SAE O-Ring Thread | 5/16–24 | 3/8–24 | 7/16–20 | 1/2–20 | 9/16–18 | 3/4–16 | 7/8–14 | 1-1/16–12 | 1-3/16–12 | 1-5/16–12 | 1-5/8–12 | 1-7/8–12 | 2-1/2–12 | |||
| Flat-Face Thread | 9/16–18 | 11/16–16 | 13/16–16 | 1–14 | 1-3/16–12 | 1-7/16–12 | 1-11/16–12 | 2–12 | ||||||||
| Inverted Flare Thread | 5/16–28 | 3/8–24 | 7/16–24 | 1/2–20 | 5/8–18 | 11/16–18 | 3/4–18 | 7/8–18 | 1/16–16 | |||||||
| Compression Thread | 5/16–24 | 3/8–24 | 7/16–24 | 1/2–24 | 9/16–24 | 5/8–24 | 11/16–20 | 13/16–18 | 1–18 | |||||||
| Code 61 Flange Head O.D. | 1.19 | 1.34 | 1.50 | 1.75 | 2.00 | 2.38 | 2.81 | 3.31 | 4.00 | |||||||
| Code 62 Flange Head O.D. | 1.25 | 1.62 | 1.88 | 2.12 | 2.50 | 3.12 | ||||||||||
| BSPP Thread | 1/8–28 | 1/4–19 | 3/8–19 | 1/2–14 | 5/8–14 | 3/4–14 | 1–11 | 1-1/4–11 | 1-1/2–11 | 2–11 | ||||||
| BSPT Thread | 1/8–28 | 1/4–19 | 3/8–19 | 1/2–14 | 5/8–14 | 3/4–14 | 1–11 | 1-1/4–11 | 1-1/2–11 | 2–11 | ||||||
| Japanese Pipe Tapered Thread | 1/8–28 | 1/4–19 | 3/8–19 | 1/2–14 | 5/8–14 | 3/4–14 | 1–11 | 1-1/4–11 | 1-1/2–11 | 2–11 | ||||||
| Japanese Flare Thread | 1/8–28 | 1/4–19 | 3/8–19 | 1/2–14 | 5/8–14 | 3/4–14 | 1–11 | 1-1/4–11 | 1-1/2–11 | 2–11 | ||||||
| Copper/Nylon Air Brake Thread | 7/16–24 | 17/32–24 | 11/16–20 | 13/16–18 | 1–18 |
| METRIC (mm) | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 30 | 33 | 36 | 42 | 45 | 52 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whitworth | 8X1.0 | 10X1.0 | 12X1.5 | 16X1.5 | 18X1.5 | 22X1.5 | ||||||||||
| MDL | M12X1.5 | M14X1.5 | M16X1.5 | M18X1.5 | M22X1.5 | M26X1.5 | M30X2.0 | M36X2.0 | M45X2.0 | M52X2.0 | ||||||
| MDH | M16X1.5 | M18X1.5 | M20X1.5 | M24X1.5 | M30X2.0 | M36X2.0 | M42X2.0 | M45X2.0 | M52X2.0 | |||||||
| Komatsu | M18X1.5 | M22X1.5 | M24X1.5 | M30X1.5 | M33X1.5 | M36X1.5 | M42X1.5 | |||||||||
| French | M20X1.5 | M24X1.5 | M30X1.5 | M36X1.5 | M45X1.5 | M52X1.5 |