Peer Review 2021


LIST Council Terminology

Peer Review - February, 2021


The LIST Council has been asked by ALOA and others to complete what would amount to a Dictionary for Locksmiths. We have begun that work and are pleased to submit this installment of the remaining terms that have been identified as specific to our industry. Please note that terms marked with an asterisk (*) will be revisions of terms currently in the glossary or previously submitted for peer review.

When making a definition of a term, we applied the following rules to the term:

1. Is the term listed in "Webster"?

2. Is the definition there the same meaning used in our industry?

To us, "Webster", means a typical pocket dictionary, which could be obtained easily, and on short notice, from any grocery store which has a pocket book display. If the answer to either of the questions above was no, we felt the term must be in our dictionary, otherwise it was common usage which anyone could define.

Because there is generally more than one term in use from one geographic area to another, we established the most popular term that most closely describes what it means as the "primary" term to be defined, unless it has different opposing definitions. All other terms with the same meaning become secondary terms and are only listed in the appendix. With that established, the definitions have to meet the following rules:

1. It must describe the subject of the term without graphics.

2. It must describe ONLY the subject of the term.

3. The term should not be used in the definition.

If you have a technical objection to any definition, please bring it to the attention of the publisher of this listing, or a member of the LIST Council for review. The current glossary may be consulted online HERE.


Brink Function
n. function of a cylinder with the plug milled so a specific key will only turn in one direction

n. a threaded cap, usually used to secure the handle shaft on the inside of a vault door

adj. the state of a deadbolt when fully extended

edge cut key
n. a cylinder key which has the bitting created by different elevations that are cut completely through the blade thickness

incidental key
n. a key whose combination unintentionally operates a cylinder that has had master pins added to two or more chambers

n. an input device, commonly a set of numerically marked buttons, used to control the operation and programming of a lock

n. a rim mounted latch which might contain a slide button or device to lock the latch in the retracted or extended position

proximity sensor
n. an electronic device that can detect the presence of objects in its vicinity without any actual physical contact

riffle pick
n. a cylinder bypass device that has a waveform shape inserted into the keyway to manipulate tumblers

v. a common notation for remove and replace as a part of service

service key
n. 1.a blank that has been cut to check or test the mechanical operation of an automotive lock that is intended to be operated by a key with added security features, 2. a high security key with cuts for a secondary mechanism that has the primary cuts at the deepest depth possible to assist in disassembly/reassembly

snubber bar
n. a device used with the time lock on a safe or vault to prevent retraction of the boltwork before a pre-determined time

store door handle
n. a device that acts as a pull handle on the outside of commercial buildings

time zoning
n. the specification of a period in a 24 hour day and/or 7 day week in which a given credential or group of credentials may be accepted



For                                    See

incidental master key         incidental key

Side Plate Lock                   escutcheon