ASME B 18.2.1 - 1996
Display drawing:
| Screw Thread | 1/2 | ||
| Nominal Diameter | 1/2 | ||
| D | 0.5 | ||
| P | 13 | ||
| Ds | Max | 0.5 | |
| Ds | Min | 0.493 | |
| S | Nominal | 3/4 | |
| S | Max | 0.75 | |
| S | Min | 0.736 | |
| E | Max | 0.866 | |
| E | Min | 0.84 | |
| K | Nominal | 5/16 | |
| K | Max | 0.323 | |
| K | Min | 0.302 | |
| Kw | Min | 0.215 | |
| B | L≤6 | 1.25 | |
| B | L>6 | 1.5 | |
| R Max | 0.025 | ||
| R Min | 0.015 | ||