Evaluate each of these features to ensure your lock is tamper-resistant to help keep your family and home safe:
- The bolt. Make sure the bolt extends at least one inch into the door jamb, which will help keep the door secured if it is kicked or struck. The bolt should also have a hardened, free-spinning , which makes the bolt more saw-proof. Locks with a six-pin keying system are also more difficult to pick than a five-pin system.
- The strike plate. This is the metal piece mounted inside the door frame that holds the bolt. It should be made of heavy-gauge steel or brass and should come with screws that are at least three inches long to securely affix it to the door frame.
- The plug. Both the plug (the part of the lock that the key turns) and cylinder (which surrounds the plug) should be made of forged solid brass. Avoid locks that use brass-plated zinc, which is softer and easier to compromise.
- The housing. Choose a lock with housing that recesses into the door, rather than sitting flush on the face of it. This prevents a burglar from simply sheering off the deadbolt.
- The door. Sliding doors are a favorite target for burglars since they often have a lock on just the handle that can be . Add an auxiliary lock with a steel bolt that attaches to the door frame, rather than another sliding panel, to prevent both horizontal and vertical movement.