Sharp "V" Thread
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- ISO Coarse Thread (metric) DIN 13-1
- ISO Fine Thread I (metric) DIN 13-2
- ISO Fine Thread II (metric) DIN 13-3
- ISO Fine Thread III (metric) DIN 13-4
- ISO Fine Thread IV (metric) DIN 13-5
- ISO Fine Thread V (metric) DIN 13-6
- ISO Fine Thread VI (metric) DIN 13-7
- ISO Fine Thread VII (metric) DIN 13-8
- ISO Fine Thread VIII (metric) DIN 13-9
- ISO Fine Thread IX (metric) DIN 13-10
- ISO Fine Thread X (metric) DIN 13-11
- ISO Thread (metric)
DIN 14-2 - Knuckle Thread DIN 405
- Knuckle Thread
DIN 20400 - Buttress Fine Thread DIN 514
- Buttress Coarse Thread DIN 513
- Buttress Thread 45°
DIN 2781 - Trapezoidal Fine Thread DIN 103
- Trapezoidal Coarse Thread DIN 103
- Valve Thread DIN 7756
- Cycle Thread DIN 79012
- PG Thread DIN 40430
- Pipe Thread DIN 158
- Dairy Thread DIN 11851
- Edison Thread
DIN 40400 - Glass Thread DIN 40450
- Knuckle Thread for glass containers DIN 168
- Threads for plastic containers DIN 6063
- Camera mount Thread
- S. & H. Thread
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- Whitworth Fine DIN 239
- Whitworth Fine DIN 240
- Whitworth Fine
DIN LON 282 - Whitworth Fine
DIN LON special - Whitworth Fine
DIN LON 286 - Whitworth Fine
DIN LON 287 - S. J. Thread
- Sellers Thread
- UNC Thread (USA)
- UNEF Thread (USA)
- UNF Thread (USA)
- UNM Thread (USA)
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- 8-UN Thread (USA)
- 12-UN Thread (USA)
- 16-UN Thread (USA)
- 20-UN Thread (USA)
- NPT Thread (USA)
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- ► Sharp V Thread
(USA) - ME Model Engineer Thread (GB)
- BA British Association (GB)
- BSB British Standard Brass (GB)
- BSF Whitworth Fine Thread (GB)
- BSW Whitworth Coarse Thread (GB)
- BSPP Whitworth Pipe Thread (GB)
- BSPT Tapered Whitworth Pipe Thread (GB)
- Conversion Inch-Fractions to mm
- Conversion TPI to pitch mm
- Drill bit sizes
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Used in the U.S.A. until 1909. The flank angle is 60°.
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| Thread Size | Nominal Diameter mm | Tapping Drill Size mm | TPI | Pitch mm |
| 1/4" | 6.35 | 4.15 | 20 | 1.27 |
| 5/16" | 7.94 | 5.50 | 18 | 1.41 |
| 3/8" | 9.52 | 6.78 | 16 | 1.59 |
| 7/16" | 11.11 | 7.97 | 14 | 1.81 |
| 1/2" | 12.70 | 9.04 | 12 | 2.12 |
| 9/16" | 14.29 | 10.63 | 12 | 2.12 |
| 5/8" | 15.87 | 11.87 | 11 | 2.31 |
| 11/16" | 17.46 | 13.46 | 11 | 2.31 |
| 3/4" | 19.05 | 14.65 | 10 | 2.54 |
| 13/16" | 20.64 | 16.24 | 10 | 2.54 |
| 7/8" | 22.22 | 17.34 | 9 | 2.82 |
| 15/16" | 23.81 | 18.93 | 9 | 2.82 |
| 1" | 25.40 | 19.90 | 8 | 3.17 |
| 1 1/8" | 28.57 | 22.29 | 7 | 3.63 |
| 1 1/4" | 31.75 | 25.47 | 7 | 3.63 |
| 1 3/8" | 34.92 | 27.58 | 6 | 4.23 |
| 1 1/2" | 38.10 | 30.76 | 6 | 4.23 |
| 1 5/8" | 41.27 | 32.47 | 5 | 5.08 |
| 1 3/4" | 44.45 | 35.65 | 5 | 5.08 |
| 1 7/8" | 47.62 | 37.84 | 4 1/2 | 5.64 |
| 2" | 50.80 | 41.02 | 4 1/2 | 5.64 |
| 2 1/8" | 53.97 | 44.19 | 4 1/2 | 5.64 |
| 2 1/4" | 57.15 | 47.37 | 4 1/2 | 5.64 |
| 2 3/8" | 60.32 | 50.54 | 4 1/2 | 5.64 |
| 2 1/2" | 63.50 | 52.50 | 4 | 5.64 |
| 2 5/8" | 66.67 | 55.67 | 4 | 5.64 |
| 2 3/4" | 69.85 | 58.85 | 4 | 5.64 |
| 2 7/8" | 73.02 | 62.04 | 4 | 5.64 |
| 3" | 76.20 | 63.64 | 3 1/2 | 7.26 |
| 3 1/8" | 79.37 | 66.81 | 3 1/2 | 7.26 |
| 3 1/4" | 82.55 | 69.99 | 3 1/2 | 7.26 |
| 3 3/8" | 85.72 | 72.18 | 3 1/2 | 7.82 |
| 3 1/2" | 88.90 | 73.36 | 3 1/2 | 7.82 |
| 3 5/8" | 92.07 | 78.53 | 3 1/2 | 7.82 |
| 3 3/4" | 95.25 | 80.59 | 3 | 8.47 |
| 3 7/8" | 98.42 | 83.76 | 3 | 8.47 |
| 4" | 101.60 | 86.94 | 3 | 8.47 |
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