Locks (security device)

mechanical or electronic fastening device

thumb|upright=1.35|Typical modern padlock with keys thumb|upright=1.35|Padlocked door

padlock attached to a public fixture as a symbol of eternal love

part of an anti-theft system

practice of unlocking a lock without the original key

security feature of a motor vehicle

electromechanical lock

type of locking device in which a sequence of symbols, usually numbers, is used to open the lock

Palestinian symbol of homes lost in 1948

type of lock used to secure bikes

lock mechanism

locking device which operates by means of electric current

door locking hardware whose mechanism is electromechanical

thumb|left|Close-up of twistlock on a rear corner of a German Container chassis|semi-trailer thumb|Close up of top corner casting on an ISO shipping container. The twistlock proper is inserted through the large oval hole in the top of upper, and the bottom of the lower corner castings.

lock picking technique for opening a pin tumbler lock

type of lock that uses a set of levers to prevent the bolt from moving in the lock

special-purpose lock for cabinets, drawers, bottles, etc. designed to help prevent children from getting at dangerous items

security device attached to a door

lock used to prevent luggage from opening by accident

lock operated by a keycard

lock that requires a pocket to be cut into the edge of the door or piece of furniture into which the lock is to be fitted

named after its inventor, Jeremiah Chubb

Finnish lock design

type of key lock

door locking device

aircraft stairs security device

right|thumb|Door with two locks, one in the doorknob and a separate deadbolt A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. It is distinct from a spring bolt lock because a deadbolt can only be opened by a key or handle. 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, as well as make the door more resistant to fo

mechanical fastening device