Specifica
| Forma del filo | Unified National |
| Diametro filettatura | 0.50 inch / 12.70 mm |
| Thread Class | 2A |
| Filo di pece | 20.00 threads Per Inch |
| Altezza | 0.48 inch / 12.09 mm |
| Applicable Region | North America, China, Europe, South America, South East Asia, South Pacific |

