knob lock
Rounded door fastener
A knob lock is a common type of door lock where the locking mechanism is built directly into the door knob itself, typically featuring a keyhole on the exterior knob and a thumb turn or push-button lock on the interior.
Found on most residential interior doors and many exterior doors, knob locks are convenient but offer less security than deadbolts because the lock cylinder can be defeated by breaking or twisting off the knob.
The knob lock on the bedroom door provides basic privacy but wouldn't stop a determined intruder.
- doorHinged room barrier
- front doorPrimary household entry point
- entry doorPrimary exterior access point
- interior doorPortal between indoor rooms
- keyLock-opening device
escutcheon · turn · thumb turn · rosette · security · bolt · twist · backset · mechanism · spindle · strike plate · grip · cylinder · click · hardware · privacy · metal · handle
knob lockdeadbolt
Key-operated door lock
smart lock · electronic lock · mortise lock · keypad lock · biometric lock
knob lockpadlock
Portable locking device
combination lock · chain lock · bike lock · travel lock · luggage lock
knob, lock, knobs, knobbed, knobby, locks, locked, locking, locker