Do all locks have unique keys?

Does every lock have a unique key?

While there is seemingly scope for every door lock in the world to require a unique key, reality is that a limited number of different key and door lock combinations exist. This is simply because key and door lock manufacturers don't need to go through the hassle of making each door lock unique.

Do any locks have the same key?

It's easy to spot locks that are keyed alike. "Look right on the box and find a particular key number," Boddie said. For example, locks by Schlage with the Number 10239; one key can open four locks. Kwikset is another popular brand that uses the same method with their packaging.

Do new locks come with unique keys?

Keys to mass-produced door locks aren't unique Those that do will be identical, and require the same key to unlock them all. Lock companies do this so you can install the same lock at your house and have one key to unlock every door, but it introduces a significant hole in home security.

Do all master locks have different keys?

In a Master Keyed system, a master key opens all the locks in the system although each lock also has its own unique key. This permits organizing master key systems along departmental or other functional lines to allow supervisory or emergency access.