| Basic dimensions (mm) | Socket head cap screw | |||
| d | D | L | L₁ | Specification |
| 10 | 20 | 13 | 15.5 | M2.5×12 | 11 | 22 | 13 | 15.5 | M2.5×12 |
| 12 | 22 | 13 | 15.5 | M2.5×12 | 14 | 26 | 17 | 20 | M3×6 |
| 15 | 28 | 17 | 20 | M3×6 | 16 | 32 | 17 | 21 | M4×16 |
| 17 | 35 | 21 | 25 | M4×20 | 18 | 35 | 21 | 25 | M4×20 |
| 19 | 35 | 21 | 25 | M4×20 | 20 | 38 | 21 | 26 | M5×20 |
| 22 | 40 | 21 | 26 | M5×20 | 24 | 47 | 26 | 32 | M6×25 |