Collection: LOCK BODY & CYLINDERS | CATEGORY

Principle of the lock started out very simple, with the idea of an inner cylinder that turns on an axis inside an outer cylinder. To open a lock, several spring-loaded, separate pins needed to be aligned by the teeth of the key. A lot has happened since the first locks went into use, and many of the changes that have come along led to new patents. As cylinders have become more advanced and more secure, so do entrance door locks.