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Αγγλικά Ιντσα 55° BSF
| BSF | TPI | Δόντια P mm | Τρυπάνι mm | d3 Minor Diameter mm | d=D Major Diameter mm |
| 3/16" | 32 | 0.794 | 4.00 | 3.747 | 4.763 |
| 7/32" | 28 | 0.907 | 4.60 | 4.394 | 5.556 |
| 1/4" | 26 | 0.977 | 5.3 | 5.100 | 6.350 |
| 9/32" | 26 | 0.977 | 6.1 | 5.893 | 7.142 |
| 5/16" | 22 | 1.156 | 6.8 | 6.459 | 7.938 |
| 3/8" | 20 | 1.27 | 8.3 | 7.899 | 9.525 |
| 7/16" | 18 | 1.411 | 9.70 | 9.304 | 11.113 |
| 1/2" | 16 | 1.588 | 11.10 | 10.668 | 12.700 |
| 9/16" | 16 | 1.588 | 12.70 | 12.256 | 14.288 |
| 5/8" | 14 | 1.814 | 14.00 | 13.549 | 15.875 |
| 11/16" | 14 | 1.814 | 15.50 | 15.137 | 17.463 |
| 3/4" | 12 | 2.117 | 16.75 | 16.336 | 19.050 |
| 13/16" | 12 | 2.117 | 18.25 | 17.924 | 20.638 |
| 7/8" | 11 | 2.309 | 19.75 | 19.269 | 22.225 |
| 1" | 10 | 2.54 | 22.75 | 22.148 | 25.400 |
| 1 1/8" | 9 | 2.822 | 26.50 | 24.963 | 28.575 |
| 1 1/4" | 9 | 2.822 | 28.75 | 28.138 | 31.750 |
| 1 3/8" | 8 | 3.175 | 31.50 | 30.861 | 34.925 |
| 1 1/2" | 8 | 3.175 | 34.50 | 34.036 | 38.100 |
| 1 5/8" | 8 | 3.175 | 38.00 | 37.211 | 41.275 |
| 1 3/4" | 7 | 3.629 | 40.50 | 39.802 | 44.450 |
| 2" | 7 | 3.629 | 47.00 | 46.152 | 50.800 |
| 2 1/4" | 6 | 4.234 | 53.00 | 51.730 | 57.150 |
| 2 1/2" | 6 | 4.234 | 59.00 | 58.080 | 63.500 |
| 2 3/4" | 6 | 4.234 | n/a | 64.430 | 69.850 |
| 3" | 5 | 5.08 | n/a | 69.692 | 76.200 |
| 3 1/4" | 5 | 5.08 | n/a | 76.042 | 82.550 |
| 3 1/2" | 4 1/2 | 5.645 | n/a | 81.670 | 88.900 |
| 3 3/4" | 4 1/2 | 5.645 | n/a | 88.020 | 95.250 |
| 4" | 4 1/2 | 5.645 | n/a | 94.370 | 101.600 |
| 4 1/4" | 4 | 6.35 | n/a | 99.822 | 107.950 |
