Why a Deadbolt?

The simple answer is "Better Home Security!"

Most doors inherently have about a 1/8th to 1/4 inch gap between the door edge and the doorjamb. If the space were any less than this it would be too tight to open and swing shut. The latch from from the doorknob typically extends from the door edge about 1/2 inch. If there's a 1/4 inch gap, that only leaves 1/4 inch of the latch to hold the door closed or to secure it when it's locked.

Now open your door and press on the doorknob latch with your finger. You'll see that it's spring-loaded and easily pushes in. This allows the door to latch when it's swung shut without turning the doorknob. This is also why, if the knob isn't installed exactly right, a LARGE majority can be opened with a simple credit card type of piece of plastic. Also, sometimes it's possible to use a pry tool between the jamb and the door edge to open enough of a gap to just pop this latch open and gain entry.

A deadbolt latch typically has a one -inch throw. That means that when the latch is extended, it protrudes from the edge of the door about an inch. With a 1/4 inch gap, it will enter the jamb about 3/4 of an inch. Three time the penetration into the jamb than the doorknob latch.

Now with the door open, extend the deadbolt latch out and push on it with your finger. You'll see that it's ridged. It can't be pushed in without retracting it with the key or the thumb turn on the inside. This prevents an attack with a stiff piece of plastic.

A deadbolt should be a must on all outside doors to provide greater security and safety for you home and family. Thomas Lock & Key will match your other door hardware and re-pin the deadbolt to match your other keys. We will install your new deadbolt on either wood or metal doors. Dial (801) 668-KEYS (5397)