Lock-bodies are Laminated Steel
Cylinders are solid brass
Long-time for shackle-electroplating
Double-locking bolts
All pins are brass
with 2 pcs iron keys
Coasted with plastic jackets
| Item | A | B | C | E | G | D | H | F | Wg |
| FQ30 | 35 | 37.5 | 18.8 | 13.3 | 24.5 | 6.2 | 62 | 21.3 | 100 |
| FQ40 | 44 | 47 | 29.5 | 19 | 30 | 7.4 | 83 | 26 | 210 |
| FQ50 | 54.5 | 50.5 | 36.5 | 26.6 | 34.5 | 10.5 | 97 | 31 | 340 |
| FQ60 | 69.5 | 57 | 47.5 | 28.6 | 38 | 12.5 | 117 | 33.5 | 625 |
