Check for a manufactures stamp on the lock face plate.
How to identify manufacture of your door lock.
These can be rekeyed using kwikset keys and factory tumblers as key cylinder dimensions are usually identical.
Knockoffs are blank faced like this one.
They are generally accepted as being more secure than the standard spring lock because they cannot be opened unless a key is used to rotate the lock cylinder to the open position.
Cheap low quality and mass produced locks often do not come with key codes.
If you re having trouble identifying your door lock type follow these simple steps.
From the different types of locks deadbolts are the ones most commonly used for front doors.
Your key code is typically stamped on the face of the lock or key but some manufacturers print them on a key code card with the printed cutting number.
Morticed or on sits on the outside rim what locking mechanisms are on the lock.