case-hardened, tempered, copper, nickel and chrome-plated steel.
- Independent dead-bolts
Ø 8.5 mm case-hardened, tempered, copper and nickel-plated steel rotating resistant to attack; .
5 pin plug, pull-resistant.
supplied with 2 Viro Top Security profile nickel-plated brass keys.
- ball type locking;
- brass pins;
- mushroom brass counterpins, ;
- locking rings;
- phosphor bronze pin springs;
- locking ring springs.
(to counter shears that generally have blades for cutting rounded profiles) case-hardened, tempered, drawn and galvanized special steel (manganese). The chain has a 8 mm wire diameter and is protected by a blue fabric scratch-proof cover that minimizes its bulk.