Are Deadbolt Locks Necessary?
Just about any home security expert or locksmith will tell you in plain terms: the lock provided by your standard doorknob simply isn’t going to cut it against a motivated intruder. This type of mechanism truly only protects against people walking up to your door and opening it by hand without keys, but it can do little in response to brute force.
Meanwhile, a quality deadbolt is forged from hardened steel. When installed properly with long three-inch long screws and a metal strike plate, it provides substantial defense against your door being kicked in
Other Factors to Consider
Deadbolt locks are available either in single- or double-cylinder iterations. A single-cylinder deadbolt provides added convenience when inside the home, requiring just the turn of a knob to activate. A double-cylinder model requires a key for locking and unlocking from either side. This is much more practical if your door features nearby windows which can be broken to allow a burglar to reach the inside knob, but keep in mind that it poses risks in a fire or similar quick-exit emergency.
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