GB /T 5788 - 1986
Display drawing:
| Screw Thread | M6 | M8 | M10 | M12 | M14 | M5 | M16 | ||
| D | 6 | 8 | 10 | 12 | 14 | 5 | 16 | ||
| P | 1 | 1.25 | 1.5 | 1.75 | 2 | 0.8 | 2 | ||
| B | L≤125 | 18 | 22 | 26 | 30 | 34 | 16 | 38 | |
| B | 125<L≤200 | None | 28 | 32 | 36 | 40 | None | 44 | |
| B | L>200 | None | None | None | None | None | None | 57 | |
| C | Min | 1.1 | 1.2 | 1.5 | 1.8 | 2.1 | 1 | 2.4 | |
| Da | Foam A | Max | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 5.7 | 17.7 |
| Da | Foam B | Max | 7.4 | 10 | 12.6 | 15.2 | 17.7 | 6.2 | 20.7 |
| Dc | Max | 13.6 | 17 | 20.8 | 24.7 | 28.6 | 11.4 | 32.8 | |
| Ds | Max | 6 | 8 | 10 | 12 | 14 | 5 | 16 | |
| Ds | Min | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 4.82 | 15.73 | |
| Du | Max | 6.6 | 9 | 11 | 13.5 | 15.5 | 5.5 | 17.5 | |
| Dw | Min | 11.6 | 14.9 | 18.7 | 22.6 | 26.4 | 9.4 | 30.6 | |
| E | Min | 8.56 | 10.8 | 14.08 | 16.32 | 19.68 | 7.44 | 22.94 | |
| F | Max | 2 | 2 | 2 | 3 | 3 | 1.4 | 3 | |
| K | Max | 6.8 | 8.5 | 9.7 | 11.9 | 12.9 | 5.6 | 15.1 | |
| K1 | Min | 2.9 | 3.8 | 4.3 | 5.4 | 5.6 | 2.3 | 6.7 | |
| R1 | Min | 0.25 | 0.4 | 0.4 | 0.6 | 0.6 | 0.2 | 0.6 | |
| R2 | Max | 0.4 | 0.5 | 0.6 | 0.7 | 0.9 | 0.3 | 1 | |
| R3 | Min | 0.1 | 0.15 | 0.2 | 0.25 | 0.3 | 0.1 | 0.35 | |
| R4 | 3.4 | 4.3 | 4.3 | 6.4 | 6.4 | 3 | 6.4 | ||
| S | Max | 8 | 10 | 13 | 15 | 18 | 7 | 21 | |
| S | Min | 7.64 | 9.64 | 12.57 | 14.57 | 17.57 | 6.64 | 20.48 | |
| T | Max | 0.2 | 0.25 | 0.3 | 0.35 | 0.45 | 0.15 | 0.5 | |
| T | Min | 0.05 | 0.1 | 0.15 | 0.15 | 0.2 | 0.05 | 0.25 | |