KEYED TO DIFFER (KD)
Each lock is opened by its own unique key that does not open any other lock in the set. Keyed to Differ is the standard keying on all Master Lock Safety Padlocks.
KEYED ALIKE (KA)
This option provides the “same key” convenience and eliminates the need for multiple keys where numerous padlocks are used. Keyed Alike is ideal for situations where employees have more than one safety padlock.
MASTER KEYED (MK)
In a Master Keyed System, a master key opens all the locks in the system although each lock has its own unique key. This permits overriding master key systems along departmental or other functional lines, to allow supervisory access.