What is the most common type of lock?Answer
YP AnswersPin tumbler locks are popular because they are relatively secure for most residential applications and generally inexpensive. Since the entire locking mechanism in this device is contained in a single cylinder, pin tumbler locks are also very easy to swap in and out. Most exterior doors on homes and apartment buildings will have at least one of each of these locks. Knob locks are quick to open and can be convenient when minimal security is acceptable, but they are very easily forced open....Read More
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