Lever mechanism decoding
Locks are equipped with the hubs, protecting against such method of effraction as self-impression, do not allow to compromise a lock Hobbs picklock, as well as prevent a range of other effraction methods.
Locks are equipped with the plates, which cover inter-lever space from the side of the keyhole. This provides the lock picker no possibility to decode the lock.
There are false grooves at the levers. U-shaped bolt shank leg. In the case of attempt of pick-lock effraction, bolt shank leg due to its form shall fall within the fall grooves at the levers, which increases the time of effraction, and, in most cases, leaves no opportunity for lock effraction.
Lock casing and cover are provided with armor plates, made of manganiferous 65G steel, with a thickness of 2 mm. Armor plate hardness after strengthening - 58-62 points in accordance with the Rockwell scale. Armor plates protect the lever mechanism (lever and shank leg) of the lock against drilling out.
Bolt shank leg is tempered up to 55-60 points in accordance with the Rockwell scale. Due to such hardness, it is very difficult to drill it out
Strong Security series locks are equipped with a loosened tooth; in the case of attempt to open a lock with a pick, last tooth of the bolt shank shall be bent, and the lock shall remain closed.
Lower parts of lock casings are opened to provide free access for the removal of the foreign objects out of the lock.
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