| Type Size | D14 | D16 | D18 | D20 | D22 | D25 | D28 | D32 | D36 | D40 |
| Coupler Length(mm) | 32 | 36 | 41 | 45 | 49 | 56 | 62 | 70 | 78 | 86 |
| Outside Diameter | 21 | 24 | 27 | 30 | 32.5 | 37 | 41.5 | 47.5 | 53 | 59 |
| Thread Diameter (mm) | 12.28 (0~+0.2) | 14.28 (0~+0.2) | 16 (0.1~+0.3) | 20 (0.1~+0.2) | 23 (0.15~+0.35) | 23 (0.15~+0.35) | 26 (0.15~+0.35) | 29.8 (0~+0.2) | 33.8 (0~+0.2) | 37.5 (0~+0.2) |
| Thread Pitch | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
| Tensile Strength |
≧600MPA |
|||||||||