Lock-bodies & cylinders are solid brass
Hardened steel shackles
Extra long-time for shackle-electroplating
Steel ball locking mechanism / Double-locking bolts
All internal pins / discs are brass
with 2 pcs brass keys
| Item No | A | B | D | E | F | G | H |
| BF30 | 30 | 48 | 6 | 14 | 28.6 | 20 | 56 |
| BF40 | 40 | 55 | 7 | 21 | 32 | 20 | 64 |
| BF50 | 50 | 65 | 9 | 23.5 | 38 | 20 | 78 |
| BF60 | 60 | 72 | 10 | 30 | 43 | 20 | 85 |
