Locksmith Terms Explained

Locksmiths use a lot of terms that are not obvious if you have never needed one before. Here is what the common ones actually mean, in plain language.

Rekey

Changing the internal pins of an existing lock so old keys stop working, without replacing the lock hardware itself. Usually less expensive than full replacement.

Lock Grade

A rating system (Grade 1, 2, or 3) that measures a lock’s durability and security level. Grade 1 is the most durable, commonly used commercially. Grade 3 is the lightest, typically found in builder-grade homes.

Master Key System

A hierarchy of locks and keys where one master key opens multiple doors, while individual keys only open their assigned door. Common in commercial buildings and HOA properties.

Deadbolt

A lock bolt that extends fully into the door frame without a spring mechanism, making it more resistant to forced entry than a standard spring latch.

Smart Lock

A lock that can be opened with a code, smartphone app, or fob instead of, or in addition to, a physical key. Often includes remote access and activity logs.

Transponder Key

A car key with a chip inside that communicates with the vehicle’s immobilizer system. The car will not start without a transponder key that matches.

Key Fob

A small remote device used to lock, unlock, or start a vehicle, often working alongside or instead of a traditional key.

Non-Destructive Entry

Opening a lock using picking, bypass, or decoding techniques rather than drilling or breaking the lock, allowing the existing hardware to keep working afterward.

Restricted Keyway

A key design that cannot be duplicated at a standard hardware store, only through an authorized locksmith, giving property owners more control over who can copy a key.

Bump Key

A specially cut key used to manipulate pin tumbler locks open without the correct key. Anti-bump hardware is designed to resist this technique.

Panic Bar

A horizontal bar on a commercial exit door that allows people to exit by pushing, required by fire code on certain commercial and public buildings.

Immobilizer

An electronic security system built into most modern vehicles that prevents the engine from starting unless the correct transponder key or fob is present.

Come across a term here that applies to your situation? Call and we will explain exactly how it fits.