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Glossary of Terms

Valet Key

(n.) An automotive key that operates all locks except storage compartments, on a vehicle where there is also a master key to operate all locks.
Source: Lock Industry Standards and Training (LIST) Council

VATS

(abb.) Vehicle Anti-Theft System
Source: Lock Industry Standards and Training (LIST) Council

VATS Interrogator

(n.) A device which determines the resistor value required to complete the ignition circuit. It also reads the value of the resistor in a VATS key.
Source: Lock Industry Standards and Training (LIST) Council

Vault

(n.) A secure room in which objects of value are stored.
Source: Lock Industry Standards and Training (LIST) Council

VD

(abb.) Vertical down
Source: Lock Industry Standards and Training (LIST) Council

Vehicle Anti-Theft System

(n.) An electronic system in some General Motors vehicles which uses a resistor pellet of varying value imbedded in a mechanical ignition key.
Source: Lock Industry Standards and Training (LIST) Council

Vertical Down

(adj.) Of or pertaining to a mounting orientation of a safe or vault lock such that the bolt projects downward.
Source: Lock Industry Standards and Training (LIST) Council

Vertical Group Master Key

(n.) The two-pin master key for all combinations listed in all blocks in a line down a page in the standard progression format.
Source: Lock Industry Standards and Training (LIST) Council

Vertical Rod Exit Device

(n.) An exit device with bolts typically at the top and bottom of a door connected to a central mechanism by rods.
Source: Lock Industry Standards and Training (LIST) Council

Vertical Up

(adj.) Of or pertaining to a mounting orientation of a safe or vault lock such that the bolt projects upward.
Source: Lock Industry Standards and Training (LIST) Council

VGM

(abb.) Vertical Group Master Key.

Virtual Keyway

(n.) A secondary locking mechanism combination used as a method of discriminating between suppliers for key control.
Source: Lock Industry Standards and Training (LIST) Council

Vise Arm

(n.) The movable jaw of a key machine vise.
Source: Lock Industry Standards and Training (LIST) Council

Vise Nut

(n.) A nut, with an external design to facilitate use without tools, that works in conjunction with the vise stud to tighten the vise on a key machine.
Source: Lock Industry Standards and Training (LIST) Council

Vise Stud

(n.) A threaded post mounted to the carriage of a key machine to provide a means of tightening the vise.
Source: Lock Industry Standards and Training (LIST) Council

Visual Key Control

(n.) A specification that all keys and the visible portion of the front of all lock cylinders be stamped with standard keying symbols.
Source: Lock Industry Standards and Training (LIST) Council

VKC

(abb.) Visual Key Control
Source: Lock Industry Standards and Training (LIST) Council

VU

(abb.) Vertical Up
Source: Lock Industry Standards and Training (LIST) Council