Marco van Wijk
Locksmithing terminology
Updated: Mar 31

A
ABUS lock: a type of high-security lock used to prevent theft of bikes, doors, and other valuables.
Access Control: The process of controlling who has access to a particular area or object, often using electronic systems.
ADA Compliant Lock: A lock that meets the Americans with Disabilities Act (ADA) standards for accessibility.
Anti-Pick Pins: Pins or tumblers inside a lock that are designed to resist manipulation or picking.
Auto Locksmith: A locksmith who specializes in automotive locks and keys.
B
Bitting: The specific cut or pattern on a key that corresponds to the pins or tumblers in a lock.
Bolt: The part of a lock that extends into the strike plate or receiver to secure the door or window.
Burglary: The act of breaking into a building or vehicle with the intent to steal or commit a crime.
C
Cam: The component inside a lock that rotates to engage or disengage the bolt or latch.
Car Key: A key designed to operate the locks and ignition of a vehicle.
Combination Lock: A lock that uses a combination of numbers or symbols to open.
Cylindrical Lock: A lock that uses a cylinder to contain the pins or tumblers that align with the key to allow the lock to be opened.
D
Deadbolt: A type of lock that uses a bolt that cannot be moved without the proper key or combination.
Deadlatch: A type of lock that has a spring-loaded latch that automatically locks when the door is closed.
Door Closer: A device that automatically closes a door after it has been opened.
Door Hardware: All the components of a door, including locks, handles, hinges, and closers.
E
Electronic Lock: A lock that uses electronic systems, such as keypads or biometric scanners, to control access.
Emergency Locksmith: A locksmith who is available 24/7
F
Fire Door: A door that is designed to prevent the spread of fire between rooms or compartments.
G
Gate Lock: A lock that is designed to secure a gate or fence.
H
High-Security Lock: A lock that is designed to resist picking, drilling, or other forms of forced entry.
I
Ignition Key: A key designed to operate the ignition system of a vehicle.
Interchangeable Core: A type of lock that allows the core to be easily removed and replaced without disassembling the entire lock.
J
Jigglers: A set of tools used by locksmiths to manipulate certain types of car locks.
K
Key Blank: A key that has not been cut or shaped to operate a specific lock.
Key Code: A sequence of numbers or letters that corresponds to the specific cuts or bitting on a key.
Key Cutting: The process of shaping a key to match the specific bitting or cuts on a lock.
Key Duplication: The process of creating a copy of an existing key.
L
Lever Lock: A type of lock that uses a set of levers to prevent the bolt from being moved without the proper key.
Lock Bumping: A technique used to open a lock by striking the key with a blunt object to temporarily align the pins or tumblers.
Lock Cylinder: The component of a lock that contains the pins or tumblers and aligns with the key to allow the lock to be opened.
Lock Picking: The process of opening a lock without the proper key or combination, often done by manipulating the pins or tumblers inside the cylinder.
M
Master Key: A key that can open multiple locks in a system, while each lock also has its own individual key.
Mortise Lock: A type of lock that is installed inside a mortise in the door and uses a latchbolt and a deadbolt to secure the door.
N
Night Latch: A type of lock that automatically locks when the door is closed, but can be opened from the inside without a key.
O
One-Key System: A system that allows multiple locks to be opened with a single key.
P
Padlock: A portable lock that can be attached to a chain or hasp to secure items such as gates, lockers, or bicycles.
Panic Bar: A horizontal bar on a door that, when pushed, releases the latch or bolt to allow for quick exit in case of an emergency.
Pins: small cylindrical mechanisms inside a lock that align to allow the lock to open.
R
Rekeying: The process of changing the pins or tumblers inside a lock so that a new key can be used to open it.
S
Safe: A secure container used for storing valuables or important documents.
Smart Lock: A lock that can be controlled or accessed using a smartphone or other electronic device.
T
Tubular Lock: A type of cylindrical lock that uses a tubular key with a circular cross-section.
U
UL Listed: A certification given to locks and other security products that have been tested and meet the standards of Underwriters Laboratories.
V
Vault: A highly secure room or container used for storing valuable items such as money or jewelry.
W
Wafer Tumbler Lock: A type of lock that uses flat wafers instead of pins or tumblers to align with the key and allow the lock to be opened.
X
X-tra Security: A term used to describe locks or security systems that provide additional layers of protection beyond the standard.
Y
Yale Lock: A type of pin tumbler lock that uses a flat key with a serrated edge.
Z
Zero-Bitted: A term used to describe a lock that has been intentionally designed without any cuts or bitting in the key, making it more difficult to pick or manipulate.