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What is the main purpose of a deadbolt lock?

  1. To allow for easy access

  2. To provide additional security

  3. To enhance aesthetics

  4. To serve as a privacy lock

The correct answer is: To provide additional security

The primary purpose of a deadbolt lock is to provide additional security. Unlike standard spring-latch locks, deadbolts are designed to be more robust and resistant to forced entry. They operate by extending a solid metal bolt into the door frame, which makes it much more difficult for intruders to manipulate or break through compared to conventional locks. This added layer of protection is crucial for securing residential and commercial properties, as it significantly decreases the likelihood of unauthorized access. In contrast to other potential functions, such as ease of access, enhancing aesthetics, or serving merely as a privacy lock, deadbolts are specifically engineered to offer enhanced security features. This is why they are commonly recommended for exterior doors, where the risk of break-ins is higher.