Lock-bodies are solid brass
Extra long-time for shackle-electroplating
Single-locking bolt
All internal pins / wheels are brass
Resettable codes
| Item No | A | B | C | D | E | G | H | Wg | Wheel |
| MF123 | 21 | 30 | 20.8 | 3.2 | 8.8 | 10 | 54 | 48 | 3 |
| MF124 | 21 | 36 | 21.8 | 3.2 | 8.8 | 10 | 61 | 57 | 4 |
| MF133 | 28.5 | 41.2 | 26.8 | 5 | 12.4 | 12.5 | 73 | 120 | 3 |
| MF134 | 28.5 | 46 | 26 | 5 | 12.4 | 12.5 | 77 | 130 | 4 |
| MF144 | 38 | 49.7 | 30.5 | 6.3 | 18.7 | 13 | 86.5 | 203 | 4 |
