Deadbolt Locks - Single and Double Cylinder Door Locks

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Deadbolts

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Which Deadbolt is Right For You?


	Single Cylinder Deadbolts are the most commonly used. Single cylinder deadbolts require a key to unlock and lock the door from the outside. From the inside the door can be locked or unlocked with a simply turning the thumb turn mechanism.		Double Cylinder Deadbolts have a keyed cylinder on both sides of the door. These deadbolts require a key lock or unlock the door from both sides. Keep in mind that in an emergency you'd have to find your key before being able to unlock the door and escape.

	Keyless Electronic Deadbolts do not require a key to enter, but you can use one if you wish. Keyless deadbolt locks are programmable so you can create your own custom code for locking and unlocking the door. This is a great soluction for a secure home and not worrying about losing keys.		Single Sided Deadbolts have only a thumb turn on the inside of the door. The bore hole for the deadbolt is drilled only partially through the door so from the outside you don't see the deadbolt. If your door already has a bore hole completely through the door, this type of deadbolt will not work for you.

Which kind of deadbolt do you need?

Single Cylinder Deadbolts are generally used in combination with a keyed door knob or lever handle on exterior doors. Single Cylinder deadbolts are unlocked with a key on the outside and a thumb turn on the inside.

Double cylinder deadbolts are locked or unlocked on both sides with a key. This is a good option for doors with glass in them as an intruder could not unlock the door even if the glass was broken. This option is not recommended for most exterior doors because if there is an emergency, occupants would have to search for a key before being able to escape.