- Look for locks made with solid metal components. Knob should have minimal wobble and the motion of the latch mechanism should be smooth and solid.
- Choose a lock that is constructed with a hardened steel bolt that extends a good inch into the doorjamb.
- Check thickness and what type of metal plating techniques are used to protect your door knob and plates.
Deadbolt
Installing a deadbolt along with the lock set are the keys to home security. A deadbolt should have a rectangular bolt with at least a 1 inch throw into the door frame.
Lock Set Types
There are two general types of doorknob assemblies :
