Keyed Padlocks

Keyed Alike (KA)

All padlocks within a set can be opened with the same key.

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Keyed to Differ (KD)

Each padlock has its own unique key, one which cannot be used in any other padlock in the set.

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Master Keyed (MK)

Each individual padlock can only be opened by a key specifically designed for that padlock, however there is also one key that can unlock all the padlocks in a set (this is a Master Key).