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Knowledgebase: Product Questions
What is KA, KD/KR, or MK ?
Posted by Joe L on 30 August 2010 05:17 PM
KA - Keyed Alike (Same key fits all). Supplied locks will be keyed alike - Keyed Alike offers the convenience of using the same key on all your locks. When ordering multiple locks, each lock is normally supplied with 2 keys and all the keys supplied with these locks will be the same. When purchasing one lock keyed alike, more can be ordered (Keyed Alike/KA) at a later date with the same key number. (Make sure you record the key number.)

KD
- Keyed Different or Random. Each manufacturer has a limited number of KD codes, while KR-Keyed Random might be more appropriate, the number of different key codes varies widely by manufacturer, and lock design. KD is the industry nomenclature regardless of key differs.

MK
- Master Keyed (Locks keyed different (separately), or in sets - usually 2 keys each), and a Master Key that operates all locks. Example: You have 20 padlock all with different keys (2 individual keys per lock), and you have a Master Key that opens all locks - this is referred to as KD/MK, or Keyed Different and Master Keyed.
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