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 ?
The application for dead bolts includes doors constructed of wood, hollow metal, Herculite, glass with metal frame, and doors where both leaves swing open.
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.
announced the launch of an innovative new personal protection product called DEAD BOLT BUDDY(TM).
Dual-action live bolts secure the advanced-function dispenser and envelope depository within the safe, along with a dead bolt beside the inner safe hinges.
The Autolok 2000 has a unique dead bolt locking system which presents the possibility of over 10 million key combinations.
He continued, "Although our current requirements of dead bolt locks and safety chains provide high quality security, we want to go beyond these standards and utilize the technology now available.
hotel room doors are equipped with 180 degree viewports, dead bolt locks, chain or bar locks.
We could have gotten a cheaper dead bolt where we work, but Barbara and I were away a lot and we thought the high- security lock was worth the few extra dollars.
The Dominion Building Products StormPro 320 fully-tested and certified assembly includes UL-labeled doors, plus cylindrical locks, dead bolts, hinges, closers, position switches, and power transfers from ASSA ABLOY hardware brands, creating a complete opening solution.
However, LV= also discovered that 24% of break-in victims do not always lock exterior doors, and fewer than half have dead bolts.
We lock our cars, put dead bolts on our doors, install bars on our windows, and buy elaborate alarms systems.
The doors have the latest high security featuring five-point locking systems, steel hook locks and dead bolts - all fitted as standard.