• Compliant with EN 1303:2005
• Number of key differs: over 30,000
• Push resistance: projecting cam.
• Drill resistance:
• Hardened steel pin and driver in first position
• Anti-picking resistance:
• Para-centric key way
• Mushroom type drivers.
• 1000 different cylinders per MK key (excluding integrated key section capacity).
• Other key configurations on request
• Tested to 100 000 cycles
• Compliant with EN 1303:2005 – Durability Grade 6

Keyed Alike locks are often referred to as "KA" locks. 

Master Keyed ("MK") refers to a set of locks that can all be opened by a master key AND by their own key (differ key).

A set of Master Keyed locks is called a system.

Locks in a Master Keyed system can be opened by more than one key.