- Basic Diamension :B.S. 84-2007
- Gauging Practice :B.S. 919, Part II -2007
| Size | |
|---|---|
| Nominal Diameter | Pitch |
| 1/8" | 40 BSW |
| 3/16" | 24 BSW |
| 32 BSF | |
| 1/4" | 20 BSW |
| 26 BSF | |
| 5/16" | 18 BSW |
| 22 BSF | |
| 3/8" | 16 BSW |
| 20 BSF | |
| 7/16" | 14 BSW |
| 18 BSF | |
| 1/2" | 12 BSW |
| 16 BSF | |
| 9/16" | 12 BSW |
| 16 BSW | |
| 26 WHIT | |
| 26 BSB | |
| Size | |
|---|---|
| Nominal. Dia | Pitch |
| 5/8" | 11 BSW |
| 14 BSF | |
| 3/4" | 10 BSW |
| 12 BSF | |
| 7/8" | 9 BSW |
| 11 BSF | |
| 1" | 8 BSW |
| 10 BSF | |
| 1.1/8" | 7 BSW |
| 9 BSF | |
| 1.1/4" | 7 BSW |
| 9 BSF | |
| 1.1/2" | 6 BSW |
| 8 BSF | |
