A Berlin key has two key blades, at each end of the key, rather than the usual single blade. Push the key through the lock, so that the key protrudes from the inside of the door. Open the now unlocked door and enter. Close the door and lock the door with the key, which now protrudes from the inside of the door.

A Long Term Investment in Your Security & Peace of Mind Inline 6 restricted key systems ~ $50 to $60 each (medium security) MT5 restricted key system ~ $100 each (high security) Galaxy and BiLock restricted key systems ~$120 each (high security)

All Locked Down There are plenty of other door locks and many fall within the five categories of knobs, deadbolts, cam locks, padlocks and mortise locks. For example, lever handle door locks are used for inner doors and work much like knob locks.

Only authorised BiLock agents have permission to design, manufacture, install & maintain your BiLock high security master key system. Their ability to quickly change combinations & cut new or additional keys, means your system & security is never compromised.

A key-in-knob lock is a lock housed within a door knob that is unlocked with a key. The lock and barrel mechanism are mounted inside the door knob with the keyhole facing to the exterior.

What’s going on here? German front doors are generally double keyed, with a keyhole on the inside of the door as well as the outside of the door. The door typically can’t be opened from the outside when closed without a key, as the lock cannot be set to an unlocked state like a typical American door knob or handle.

If you really want a high security lock on your door choose BiLock. Unauthorized key duplication is the single most important security consideration of any lock. It is estimated that over 40% of illegal entries result from unauthorized key duplication.

A real bump proof lock costs $100 or more. If you are spending a lot less you are probably not getting what you expect. If you really want a high security lock on your door choose BiLock. Unauthorized key duplication is the single most important security consideration of any lock.

BiLock Showcase Push Button Lock for use on glass sliding doors or display cases. Secures easily by extending a post out from the back of the lock. BiLock electronic switch locks allow integration of mechanical locks into electronic systems and devices with ease.

BiLock electronic switch locks allow integration of mechanical locks into electronic systems and devices with ease. They are very similar to standard cam locks however they have electrical connectors on the back panel that are bridged when the proper key is inserted and turned. Available in several varieties to facilitate various use cases.