These can be rekeyed using kwikset keys and factory tumblers as key cylinder dimensions are usually identical.
How to identify manufacture of your door lock.
Cheap low quality and mass produced locks often do not come with key codes.
In that case you ll have to replace your entire lock system if you do not have a corresponding key.
Morticed or on sits on the outside rim what locking mechanisms are on the lock.
Check for a manufactures stamp on the lock face plate.
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.
Knockoffs are blank faced like this one.
Genuine kwikset deadbolts have the name kwikset embossed in bolt s face plate on the edge of the door older ones say kwikset right on the faceplate of the lock.
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.