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Pressbolt Middle East – presents its Product Standard Thread Pitch Chart, with the flexibility to offer fine thread pitch options based on customer requirements.
| Coarse Thread Series - UNC | Fine Thread Series - UNF | 8-Thread Series - 8UN | Metric Pitch |
|---|---|---|---|
| Nominal Size and Threads Per In. | Nominal Size and Threads Per In. | Nominal Size and Threads Per In. | Metric Coarse Threads |
| 1⁄4 - 20 | 1⁄4 - 28 | -- | M5 - 0.8 |
| 5⁄16 - 18 | 5⁄16 - 14 | -- | M6 - 1 |
| 3⁄8 - 16 | 3⁄8 - 24 | -- | M7 - 1 |
| 7⁄16 - 14 | 7⁄16 - 20 | -- | M8 - 1.25 |
| 1⁄2 - 13 | 1⁄2 - 20 | -- | M9 - 1.25 |
| 9⁄16 - 12 | 9⁄16 - 18 | -- | M10 - 1.5 |
| 5⁄8 - 11 | 5⁄8 - 18 | -- | M11 - 1.5 |
| 3⁄4 - 10 | 3⁄4 - 16 | -- | M12 - 1.75 |
| 7⁄8 - 9 | 7⁄8 - 14 | -- | M14 - 2 |
| 1 - 8 | 1 - 12 | 1 - 8 | M16 - 2 |
| 11⁄8 - 7 | 11⁄8 - 12 | 1 1⁄8 - 8 | M18 - 2.5 |
| 11⁄4 - 7 | 11⁄4 - 12 | 11⁄4 - 8 | M20 - 2.5 |
| 13⁄8 - 6 | 13⁄8 - 12 | 13⁄8 - 8 | M22 - 2.5 |
| 11⁄2 - 6 | 11⁄2 - 12 | 11⁄2 - 8 | M24 - 3 |
| -- | -- | 15⁄8 - 8 | M27 - 3 |
| 13⁄4 - 5 | -- | 13⁄4 - 8 | M30 - 3.5 |
| -- | -- | 17⁄8 - 8 | M33 - 3.5 |
| 2 - 41⁄2 | -- | 2 - 8 | M36 - 4 |
| 21⁄4 - 41⁄2 | -- | 21⁄4 - 8 | M39 - 4 |
| 21⁄2 - 4 | -- | 21⁄2 - 8 | M42 - 4.5 |
| 23⁄4 - 4 | -- | 23⁄4 - 8 | M45 - 4.5 |
| 3 - 4 | -- | 3 - 8 | M48 - 5 |
| 31⁄4 - 4 | -- | 31⁄4 - 8 | M52 - 5 |
| 31⁄2 - 4 | -- | 31⁄2 - 8 | M56 - 5.5 |
| 33⁄4 - 4 | -- | 33⁄4 - 8 | M60 - 5.5 |
| 4 - 4 | -- | 4 - 8 | M64 - 6 |
| -- | -- | -- | M68 - 6 |
| -- | -- | -- | M72 - 6 |
| -- | -- | -- | M80 - 6 |
| -- | -- | -- | M90 - 6 |
| -- | -- | -- | M100 - 6 |
