| Screw Thread | M42 | ||
| D | 42 | ||
| P | 4.5 | ||
| B | L≤125 | - | |
| B | 125＜L≤200 | 96 | |
| B | L＞200 | 109 | |
| C | Max | 1 | |
| C | Min | 0.3 | |
| Da | Max | 45.6 | |
| Ds | Nominal | 42 | |
| Ds | Grade A | Min | None |
| Ds | Grade B | Min | 41.38 |
| Dw | Grade A | Min | None |
| Dw | Grade B | Min | 59.95 |
| E | Grade A | Min | None |
| E | Grade B | Min | 71.3 |
| K | Nominal | 26 | |
| K | Grade A | Max | None |
| K | Grade A | Min | None |
| K | Grade B | Max | 26.42 |
| K | Grade B | Min | 25.58 |
| K1 | Grade A | Min | None |
| K1 | Grade B | Min | 17.91 |
| R | Min | 1.2 | |
| S | Max | 65 | |
| S | Grade A | Min | None |
| S | Grade B | Min | 63.1 |