House, apartment, bicycle... a key for every lock!

The keys to the house door, garage, padlock, or bike lock accompany us every day and make our lives more secure. But how does this key-lock principle actually work?

All cylinder types are basically built according to the same principle. Various core pins are contained inside the lock and a pin spring is located under each one. The core pins are of various lengths. Their length defines the grooves in the key. If the correct key for the lock is inserted into the keyway, the core pins will be pushed down. The proper key can be inserted into the profile cylinder until it hits the striker and then turned to unlock the lock.


To our door cylinders
To our locking systems
To our bike locks

More about Keys and Cylinders

Ordering Additional Keys

Need an additional key for your lock cylinder or lock? Here you will find out how to receive additional keys securely and with identical quality.


Instructions for Care

Taking care of it the right way does the trick: Your door cylinder will lock effortlessly if you take our tips for care to heart.


Good to Know

Every key looks different. Here you will learn more about different types of keys.


Questions & answers

Security glossary