• Română
  • English
×

Double bit locks

Dierre offers a wide range of double-bit locks to apply and to insert, to meet the different security needs and types of armored door.

Double bit locks

Our families of double bit locks

  • Strong - 4-throw lock with 38 mm bolt travel for iron doors.
  • Heavy - Safety locks with 38 mm bolt travel correlated with test key, 3 92 mm long keys and block. Certifications and variants available on request.
  • Double - Double safety lock series for armored doors with keyhole. Related with test key and 3 92 mm long keys for upper and lower lock.
  • Proof - Double bit triple lock and European cylinder. Supplied in two versions and related with test key, 3 92 mm long keys, block, bracket and screws for cylinder fixing.
  • Roller - Lock with friction knob for armored doors. 38 mm bolt stroke; keyway, handle and knob 70 mm. Related with test key, 3 long keys and lock.
  • Click-Clack - Triple locks (double bit and cylinder) for outdoor locking.
  • Slim - Three-fold mortise lock with a reduced thickness profile, for outdoor locking.

The patents of Dierre double bit locks

Dierre double-bitted locks boast two patents, developed internally to meet everyday needs.
LOCK TRAP SYSTEM
locktrapsystem-dierre

DDierre has developed the Lock Trap System patent with the aim of solving the most common problem related to double-bit locks: breaking in with a Bulgarian pick , a tool widely used by thieves and criminals to force double-bit locks..

The Lock Trap System patent is in fact able to block the functioning of the Bulgarian lock and prevent entry into the home.

brevettomia-dierre
Another exclusive patent dedicated to Dierre double-bitted locks is Mia .

Thanks to the Mia patent, in case of loss of the keys it will not be necessary to buy a new lock, but simply to buy the lock and replace it.