ASME B 18.2.1 - 2010
Display drawing:
| Screw Thread | 3 | ||
| D | 3 | ||
| P | 4 | ||
| Ds | Max | 3.081 | |
| Ds | Min | 2.961 | |
| S | Nominal | 4-1/2 | |
| S | Max | 4.5 | |
| S | Min | 4.35 | |
| E | Max | 5.196 | |
| E | Min | 4.959 | |
| K | Nominal | 2 | |
| K | Max | 2.06 | |
| K | Min | 1.815 | |
| R | Max | 0.190 | |
| R | Min | 0.060 | |
| B | L≤6 | 6.25 | |
| B | L>6 | 6.5 | |