
Parallel pipe threads (PF - G) A class Unit: mm Taper Pipe Threads (PT. R) Unit: mm
SP
| Size | Major diameter o | f external threads | Bar Diameter | ||
| Max. | Min. | ||||
| PF | 1/16 - | 28 | 7.723 | 7.509 | 7.56 |
| PF | 1/8 - | 28 | 9.728 | 9.514 | 9.57 |
| PF | 1/4 - | 19 | 13.157 | 12.907 | 13.00 |
| PF | 3/8 - | 19 | 16.662 | 16.412 | 16.50 |
| PF | 1/2 - | 14 | 20.955 | 20.671 | 20.70 |
| PF | 5/8 - | 14 | 22.911 | 22.627 | 22.70 |
| PF | 3/4 - | 14 | 26.441 | 26.157 | 26.20 |
| PF | 7/8 - | 14 | 30.201 | 29.917 | 30.00 |
| PF | 1 - | 11 | 33.249 | 32.889 | 33.00 |
| PF | 1 1/8 - | 11 | 37.897 | 37.537 | 37.60 |
| PF | 1 1/4 - | 11 | 41.910 | 41.550 | 41.60 |
| PF | 1 1/2 - | 11 | 47.803 | 47.443 | 47.50 |
| PF | 2 - | 11 | 59.614 | 59.254 | 59.30 |
| Size | Bar diameter | |
| Taper (dia of threads end) Straight | ||
| PT | 1/16 - | 28 7.5 7.9 |
| PT | 1/8 - | 28 9.5 9.9 |
| PT | 1/4 - | 19 12.8 13.4 |
| PT | 3/8 - | 19 16.3 16.9 |
| PT | 1/2 - | 14 20.5 21.3 |
| PT | 3/4 - | 14 25.9 26.8 |
| PT | 1 - | 11 32.7 33.7 |
| PT | 1 1/4 - | 11 41.2 42.3 |
| PT | 1 1/2 - | 11 47.1 48.2 |
| PT | 2 - | 11 58.7 60.1 |
THREADS,