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No matter what door is installed - steel or wooden, it is still possible to break it through the original weak point - the lock. That is why the choice of locks should be approached with special attention. AND replacement of door locks, should be carried out by a professional who will do everything quickly and inexpensively. For proper security, it is recommended to buy and install multi-faceted locks on the door. More often, their roles are played by bolt and cylinder locks that have proven themselves well in our realities.
The first got its name due to the presence of pins (suvalds), which have excellent free movement. At first glance, this will appear to be a disadvantage, but the free movement allows to better resist when breaking the lock with the help of a bump key. If the hinges are made of durable steel, premature wear will not be observed, as is often the case with versions with soft brass hinges. It is better to add money and buy a lock of the fourth security class, which is equipped only with steel pins and often has additional protection against drilling in the form of a manganese plate.
Suwald locks are valued for the presence of many bolts that come out of the lock directly into the door jamb and are tightly fixed. The more bolts, the better - it will be much more difficult for a professional to drill them. In particular, if you do not forget to buy a version in which the bolts have additional protection from hollow steel cylinders.
Cylindrical locks have a different structure - in contrast to deadbolt locks, which are installed behind the steel door, cylindrical ones protrude outward. But the larva can be knocked out inside. To protect against this type of break-in, it is customary to use additional armor plates installed on long screws on top of the door.
Cylinder locks, which can be bought in branded stores, are most often equipped with special larvae, in which the plates have the property of rotating around an axis. If an intruder tries to drill such a lock, nothing will come out of it - all the mechanisms will rotate at the same speed at which the drill engine works. As soon as the battery of the drill goes down, all the internal mechanisms of the larva of the lock will fail.
When buying a cylinder lock, it is important to choose versions that use keys with a side sharpening. This allows you to repeatedly increase security, since the best versions of these types of locks have a six-digit number of combinations. If such a key is lost, it can be made by any master who makes keys with the help of a small drill.
