A dead bolt, deadbolt or dead lock is a locking mechanism distinct from a spring bolt lock because a deadbolt cannot be moved to the open position except by rotating the lock cylinder with the key. The more common spring bolt lock uses a spring to hold the bolt in place, allowing retraction by applying force to the bolt itself. A deadbolt can therefore make a door more resistant to entry without the correct key.
A deadbolt is often used to complement a spring-bolt lock on an entry door to a building.
A deadlock, if it is cylinder operated, may be either single cylinder or double cylinder. A single cylinder deadlock will accept a key on one side of the lock, but is operated by a twist knob on the other side. Double cylinder locks will accept a key on both sides and therefore do not require (and often do not have) any twist knob. This prevents unwanted unlocking of the door by forced access to the interior twist knob (via a nearby window, for example). Double cylinder locks are sometimes banned from areas because they can be difficult to open from the inside and violate fire safety regulations. Some lock manufacturers also have a "lockable" knob: a key is always needed on one side (usually external), and a twist knob can be used on the other (internal), unless a button has been pressed, in which case a key is also needed on the internal side.
Deadbolt is a 1992 made-for-television thriller film, by Douglas Jackson, and starring Justine Bateman, Adam Baldwin, and Michele Scarabelli.
When medical student Marty Hiller (Justine Bateman) places an ad for a roommate, her ad is answered by handsome, clean-cut Alec Danz (Adam Baldwin). At first Alec seems to be a wonderful roommate; supportive, considerate and a real friend. However, Alec's affection turns to obsession as he plots to manipulate and control all aspects of Marty's life, imprison her in her own apartment and make her his.
A dead bolt is a type of locking mechanism.
Deadbolt may also refer to:
when deadbolts awake you from deja vu dreams,
at four in the morning you know where I'll be.
out running red lights asleep at the wheel.
the sirens feed my nightmares,
i just close my eyes and I'm already there;
its already too late.
i know its nothing but lies,
but they sound so sincere;
i find them too hard to hate.
and she calls from the doorway "stolen water is so sweet,
so lets drink in the darkness if you know what i mean"
and she calls from the doorway "stolen water is so sweet,
so lets drink in the darkness if you know what i mean"
and I'm almost sure
that I've been here before,
that this is not the first time I've stood in front of this door,
with an overwhelming feeling that i shouldn't go in,
but it seems this is a battle that i never could win.
and you!
my true love!
you call from the hilltop.
you call through the streets,
"Darling don't you know,
the water is poison."
and i say!
"come on and give me my poison."
what have i done.?
is it too late to save me from this place?
from the depths of the grave?
we all are those ..
who thought we were brave.