Dead bolt


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dead bolt

[′ded ‚bōlt]
(design engineering)
A lock bolt that is moved directly by the turning of a knob or key, not by spring action.

Dead bolt

A bolt with a square head controlled directly by the key when moved in either direction.

dead bolt

dead bolt
A type of door lock; the bolt, which is square in cross section, is operated by the door key or a turn piece.
References in periodicals archive ?
Adding a dead bolt and upgrading both the dead bolt and lockset to higher grade alternatives can offer more security.
For doors that swing in two directions, a solenoid activated dead bolt or bolt lock may provide an acceptable alternative to the magnetic shear lock.
According to Jim Brown, security facilities manager for TRW Space and Defense Sector, "In the past, to protect against unauthorized internal access, defense contractors have used an auxiliary spin-dial locking system, which has an automatic dead bolt and requires a two-handed operation to unlock the dead bolt and twist the doorknob to exit.
It's a little device that slides under the existing dead bolt, preventing anyone from turning it from the outside, even with a key.
The folks at Simplicikey came up with a motorized dead bolt lock and remote key fob.
com) recommends that guests check their rooms to see if they are equipped with a dead bolt lock and peephole.
Lock and unlock the dead bolt from your computer or phone on a moment's notice, or program it to unlock at preset times.
PATHFINDER developed the packaging and launched a nationwide marketing campaign for Dead Bolt Buddy(TM), a patented personal protection consumer product.
You can spend hundreds on a fancy "pick-proof" dead bolt for your entry door.
announced the launch of an innovative new personal protection product called DEAD BOLT BUDDY(TM).
You use your dead bolt every day without giving a thought to maintenance.