Auto Locksmith Glossary

The following is an A-Z auto locksmith glossary of terms that are related to 24-hour auto locksmith services.

Auto- usually used in reference to passenger vehicles that are designed with a diesel or gasoline internal-combustion engine, having four wheels for operation on ordinary roads.

Blade - is the portion of the key that contains the millings and/or cuts.

Cylinder -is an operating unit consisting of tumblers, a cam/tailpiece, springs, plug shell, plug retainer and other operating parts of a lock.

Door Closer- is a device that can be pneumatic or hydraulic, for controlling door closing and keeps it from slamming.

High Security Lock- is a high-quality lock that is designed to give ultimate protection and guard against break-in entry tools and methods.

Ignition- is the process by which fuel in the cylinder is ignited.

Ignition Key- this is the key that activates an automotive engine's ignition switch.

Key- this our every-day metal instrument that is specially cut and designed to fit in a lock and remove its bolt.

Keyless- meaning it requires no key. A keyless system or lock can be operated using codes, or push buttons combinations.

Lock- is a device that is used to fasten, close, hold or secure a door or other device or hardware. It can be operated or opened using a key, keycard, combination or other means.

Lock Change- is to take an existing lock and replace with a new lock.

Lock Installation- is to put a new lock where there was none.

Passage Lock- is used for convenience purposes only and is a simple handle with no locking cylinder.

Pin-is a short, stiff, straight, piece of wire that has a sharp point and a blunt head that is used for fastening.

Rekey- altering the combination of the tumblers in an existing lock, such that the new combination is only opened by a new key and the old key no longer works on the "new" rekeyed lock.

Technician- is a person skilled and trained in the specific technicalities of a subject.

Transponder- is an auto key that has an electronic component that converts signal into electrical current and the key transmits a code that is unique in return. It is also defined as a radar/sonar transceiver or radio transceiver that automatically sends a signal once it receives an incoming signal.

Tumbler- found in locks. Once it is released or lifted by key action it will allow the bolts in the lock to move.

VAT System- was used in autos, especially before the year 2000. VAT is the acronym for 'vehicle anti-theft' and was a security system for the auto.