Deadlatch
The deadlatch is a latch designed with an additional deadlatch plunger. The deadlatch has a specific security function that requires proper installation and alignment with the strike plate. Properly installed, the latch should fall into the strike opening when the door is closed, but the deadlatch plunger should not.
Springlatch
Springlatches are not a recommended form of key entry. This type of latch is easily bypassed with a credit card or other type of shim material or tool.
Deadbolt
Deadbolt locks offer the best possible manual lock security. Proper installation is necessary to ensure that the bolt extends freely and fully, because unless fully extended, the lock is not actually engaged
properly.
Lock Cylinder
This is a standard pin tumbler lock cylinder. It can be rekeyed and/or masterkeyed. They come in a variety of keyways, which determines the type of key blank used to operate the lock.
Interchangeable Core
Some locks are designed to use interchangeable cores. They are more commonly used in commercial applications. They are usually masterkeyed. Aside from the master key and individual operating key
(also known as the change key), these locks have a control, or core, key that is used to install and remove the core from the lock. The control key must be used to service the lock.
Profile Cylinder
Profile cylinders are more commonly used in Europe, but are increasingly found in the United States. They are most often found in storm and patio door locks. They may be keyed on one or both sides.
Smart Locks
Smart locks or intelligent locks are basically locks that are connected to the internet. These locks serve as an access control system and can be installed at residential and commercial properties easily. These locks have proximity sensors such as NFC or Bluetooth have, and thus, these can unlock any door if approached by an authorized user’s smartphone. It is also possible to lock and unlock these locks remotely.
With smart locks, you will no longer feel restricted by door keys because your mobile will act as a key as well.