| Model Number | MGN12C | |
| Dimensions of Assembly (mm) | H | 13 |
| H1 | 3 | |
| N | 7.5 | |
| W | 27 | |
| Dimensions of Block (mm) | B | 20 |
| B1 | 3.5 | |
| C | 15 | |
| L1 | 21.7 | |
| L | 34.7 | |
| G | - | |
| Gn | ||
| Mxl | M3x3.5 | |
| H2 | 2.5 | |
| Dimensions of Rail (mm) | WR | 12 |
| HR | 8 | |
| D | 6 | |
| h | 4.5 | |
| d | 3.5 | |
| P | 25 | |
| E | 10 | |
| Mounting Bolt for Rail | (mm) | M3x8 |
| Basic Dynamic Load Rating | C(kN) | 2.84 |
| Basic Static Load Rating | C0(kN) | 3.92 |
| Static Rated Moment | MR N-m | 25.48 |
| MP N-m | 13.72 | |
| MY N-m | 13.72 | |
| Weight of Block | kg | 0.034 |
| Weight of Rail | kg/m | 0.65 |
