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Master key systems Padlocks Precision parts

One master key.
Every lock its own.

We plan, build and key master-keyed padlocks and drawer locks for utilities, logistics and facility teams worldwide. Your key chart is drawn up in-house, every key is cut in our Istanbul factory, and every lock arrives numbered and ready to fit.

Since 1964
Making locks in Istanbul
Pin tumbler
One of the first two makers in Türkiye
Exporting to
EgyptRussiaKazakhstanSpain
Ay Locks factory: CNC lathes machining brass parts and a solid brass AY padlock with keys
Ay Locks machine park: automatic lathes and CNC turning