Can two locks have the same key?

Question

Keyed alike means one key fits all locks, for example your front and back door locks can both use the same key or every lock in an office can use the same key. Having your locks keyed alike is very beneficial if you want to open & close all your door locks with one key.

Can a key open two different locks?

Any key that can open two or more locks is considered a master key. Many master keys use pin and tumbler locks. For a master key to work, though, there must be something called master wafers inside the lock.

Do all locks have unique keys?

No. The same company usually offers locks that are keyed-alike (ka), for the homeowners who want their front and back doors to use the same key, and to have a total of four identical keys to open either lock.

Expert · Answer

Any key that can open two or more locks is considered a master key. Many master keys use pin and tumbler locks. For a master key to work, though, there must be something called master wafers inside the lock.

Expert · Answer

No. The same company usually offers locks that are keyed-alike (ka), for the homeowners who want their front and back doors to use the same key, and to have a total of four identical keys to open either lock.

Can two locks have the same key?

Can a key open two different locks?

Do all locks have unique keys?

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