There are various types of locks used for apartment doors. Some commonly used types of locks include:
1. Deadbolts: These are the most common locks used for apartment doors. Deadbolts are usually installed separately from the doorknob and require a key or thumb turn to lock and unlock.
2. Key-in-knob locks: These locks combine the key cylinder and doorknob into one unit. They are commonly found in older apartments but are less secure compared to deadbolts.
3. Electronic keypad locks: These locks use numeric codes or keycards for access. They provide added convenience and allow for easy changing of access codes.
4. Smart locks: These locks are connected to a smartphone or smart home system, allowing remote locking and unlocking, as well as additional features such as temporary access codes or activity logs.
5. Cylinder locks: These locks have a removable cylinder that can be easily replaced, making them suitable for quick rekeying if tenants change frequently.
The specific type of lock used in an apartment may vary depending on the building's security requirements and the landlord's preferences.
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