| Screw Thread | 1-3/4 | ||
| D | 1.7500 | ||
| P | 5 | ||
| B | Min | L≤10 | 3.750 |
| B | Min | 10＜L≤16 | 4.000 |
| B | Min | L＞16 | 4.500 |
| U | Max | UNC | 0.400 |
| U | Max | UNF | None |
| U | Max | BUN | 0.250 |
| Ds | Max | 1.7500 | |
| Ds | Min | UNC | 1.727 |
| Ds | Min | UNF | None |
| Ds | Min | BUN | 1.733 |
| Ds1 | Max | UNC | 1.727 |
| Ds1 | Max | UNF | None |
| Ds1 | Max | BUN | 1.733 |
| Ds1 | Min | UNC | 1.609 |
| Ds1 | Min | UNF | None |
| Ds1 | Min | BUN | 1.659 |