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| GLOSSARY |
S/A-
(abb.) Sub-Assembled
Source: Lock Industry Standards and Training (LIST) Council
Safe-
(n.) A substantial, secure container with varying degrees of security and/or fire resistance, used to store valuables against fire or theft.
Source: Lock Industry Standards and Training (LIST) Council
Safe Deposit-
(n.) A typically key accessed container that requires dual key operation, usually located inside a vault.
Source: Lock Industry Standards and Training (LIST) Council
Safe Deposit Function-
(adj.) An operational characteristic of a lock which requires two separate keys working in tandem to open the lock.
Source: Lock Industry Standards and Training (LIST) Council
Safe Deposit Lock-
(n.) A lock that typically requires two separate keys to access a container.
Source: Lock Industry Standards and Training (LIST) Council
Safe Door-
(n.) That portion of a safe used to gain access to the contents of the safe in a normal day to day manner.
Source: Lock Industry Standards and Training (LIST) Council
Sally Port-
(n.) An access control area with doors or gates secured by interlocks such that only one may be opened at a time.
Source: Lock Industry Standards and Training (LIST) Council
Sash Lock-
(n.) A type of window lock.
Source: Lock Industry Standards and Training (LIST) Council
SAVTA-
(abb.) Safe and Vault Technicians Association
Source: Lock Industry Standards and Training (LIST) Council
SBCCI-
(abb.) Southern Building Code Congress International
Source: Lock Industry Standards and Training (LIST) Council
Scalp-
(n.) A thin piece of metal which is usually crimped or spun onto the front of a cylinder. It determines the cylinder's finish and may also serve as the plug retainer.
Source: Lock Industry Standards and Training (LIST) Council
Scandinavian Padlock-
(n.) A cast case padlock with an elliptical cross section. The locking mechanism is a set of rotating disc tumblers, which engage notches in the cast shackle and may be rotated by the angled cuts cast on the key.
Source: Lock Industry Standards and Training (LIST) Council
Screen Door Lock-
(n.) A lock designed for the thin stiles typically found on screen and storm doors.
Source: Lock Industry Standards and Training (LIST) Council
Screw Change (Wheel)-
(n.) A perforated tumbler that may have its combination set by placement of a screw in one of the perforations.
Source: Lock Industry Standards and Training (LIST) Council
Screwless Knob-
(n.) A mortise lock knob assembly secured to the spindle without screws.
Source: Lock Industry Standards and Training (LIST) Council
Screwless Rose-
(n.) A mortise lock rose installed without screws.
Source: Lock Industry Standards and Training (LIST) Council
SDB-
(abb.) Safe Deposit Box
Source: Lock Industry Standards and Training (LIST) Council
Seal-
(n.) A single use device intended to give recognizable evidence to the physical opening or entry of a door, container, or space.
Source: Lock Industry Standards and Training (LIST) Council
Second Generation Duplicate-
(n.) A key reproduced from a first generation duplicate.
Source: Lock Industry Standards and Training (LIST) Council
Secondary Key-
(n.) A key which operates certain locks on a vehicle, but not the ignition lock.
Source: Lock Industry Standards and Training (LIST) Council
Secret Gate Latch-
(n.) A small keyless rim latch, which when properly installed, is operated by pressing a concealed actuator.
Source: Lock Industry Standards and Training (LIST) Council
Sectional Trim-
(n.) A design that uses two or more escutcheons on the same side of a door for a single lock.
Source: Lock Industry Standards and Training (LIST) Council
Security Collar-
(n.) A protective cylinder collar.
Source: Lock Industry Standards and Training (LIST) Council
See also: “cylinder guard”
Security Leg Keyway-
(n.) A key section and keyway design that incorporates two non-curved planes of the key blade intersecting at an angle between 1 and 89 degrees.
Source: Lock Industry Standards and Training (LIST) Council
Segmented Follower-
(n.) A plug follower sliced into sections which are introduced into the cylinder shell one at a time. It is typically used with profile cylinders.
Source: Lock Industry Standards and Training (LIST) Council
Selective Key System-
(n.) A key system in which every key has the capability of being a master key. It is normally used for applications requiring a limited number of keys and extensive cross keying.
Source: Lock Industry Standards and Training (LIST) Council
Selective Master Key-
(n.) An unassociated master key which can be made to operate any specific lock(s) in the entire system in addition to the regular master key(s) and/or change key(s) for the cylinder without creating key interchange.
Source: Lock Industry Standards and Training (LIST) Council
Self Closing-
(adj.) Pertaining to doors or covers which have a continuous force applied in the closing direction.
Source: Lock Industry Standards and Training (LIST) Council
Semi-Automatic Key Machine-
(n.) A machine capable of duplicating keys with limited manual operations.
Source: Lock Industry Standards and Training (LIST) Council
Sequence Of Progression-
(n.) The order in which bitting positions are progressed to obtain change key combinations.
Source: Lock Industry Standards and Training (LIST) Council
Series Wafer-
(n.) A type of disc tumbler used in certain binary type disc tumbler key-in-knob locks. Its presence requires that no cut be made in that position on the operating key(s).
Source: Lock Industry Standards and Training (LIST) Council
Serrated Fence-
(n.) A fence with "V" shaped notches on a contact surface to inhibit manipulation.
Source: Lock Industry Standards and Training (LIST) Council
Serrated Tumbler-
(n.) 1. A disk tumbler with "V" shaped notches in its sides that do not allow operation.
(n.) 2. A lever tumbler which has "V" shaped notches in the contact end near the gate.
(n.) 3. A pin tumbler with "V" shaped grooves around its circumference.
(n.) 4. A combination wheel with "V" shaped notches along its outside diameter.
Source: Lock Industry Standards and Training (LIST) Council
Service Code-
(n.) In an electronic lock, a factory set or user set code or combination that will open the lock one time.
Source: Lock Industry Standards and Training (LIST) Council
Service Hole-
(n.) 1. An aperture aligned with each chamber, providing a path for the ejector pin to drive the entire pin stack from an IC.
(n.) 2. A hole in a cylinder shell intended to provide access for rekeying without disassembly of the cylinder.
Source: Lock Industry Standards and Training (LIST) Council
Service Panel-
(n.) The back cover of a safe door which must be opened or removed to allow access for repairs.
Source: Lock Industry Standards and Training (LIST) Council
Servicemark Keyway-
(n.) Any keyway whose shape has been configured to receive protection under trademark or servicemark law.
Source: Lock Industry Standards and Training (LIST) Council
Set Screw-
(n.) A screw used to fasten a component in a fixed position relative to another component.
Source: Lock Industry Standards and Training (LIST) Council
Set-Up Key-
(n.) A key used to calibrate some types of key machines.
Source: Lock Industry Standards and Training (LIST) Council
Set-Up Plug-
(n.) A type of loading tool shaped like a plug follower. It contains pin chambers and is used with a shove knife to load springs and top pins into a cylinder shell.
Source: Lock Industry Standards and Training (LIST) Council
Seven Column Progression-
(n.) A process wherein key bittings are obtained by using the cut possibilities in seven columns of the key bitting array.
Source: Lock Industry Standards and Training (LIST) Council
Seven Pin Master Key-
(n.) A master key for all combinations obtained by progressing seven bitting positions.
Source: Lock Industry Standards and Training (LIST) Council
Sex Bolt-
(n.) A nut and bolt set used to through bolt, with a closed nut basically flush with the mounting surface creating the appearance of a carriage bolt.
Source: Lock Industry Standards and Training (LIST) Council
SFIC-
(abb.) Small Format Interchangeable Core
Source: Lock Industry Standards and Training (LIST) Council
Shackle-
(n.) 1. The part of a padlock, which passes through an opening in an object or fits around an object and is ultimately locked into the case.
(n.) 2. The portion of a restraint which fits around the wrist, ankle, neck, waist or thumb.
Source: Lock Industry Standards and Training (LIST) Council
Shackle Retaining Pin-
(n.) A pin which keeps an unlocked shackle heel in the case.
Source: Lock Industry Standards and Training (LIST) Council
Shackle Spring-
(n.) A spring which pushes the shackle into the open position when the padlock is unlocked.
Source: Lock Industry Standards and Training (LIST) Council
Shank-
(n.) 1. The part of a bit key between the bow and the stop; or, if there is no shoulder stop, the part between the bow and the near side of the bit.
(n.) 2. A smaller diameter portion of a knob that is positioned between the larger portion of the knob and the rose or the door surface.
Source: Lock Industry Standards and Training (LIST) Council
SHDA-
(abb.) Security Hardware Distributors Association (formerly NLSA)
Source: Lock Industry Standards and Training (LIST) Council
Shear Line-
(n.) A location in a cylinder at which specific tumbler surfaces must be aligned, removing obstruction(s) which prevented the plug from moving.
Source: Lock Industry Standards and Training (LIST) Council
Shell-
(n.) The part of the cylinder which surrounds the plug and which usually contains tumbler chambers corresponding to those in the plug.
Source: Lock Industry Standards and Training (LIST) Council
Shim-
(n.) 1. A thin piece of material used to unlock the cylinder plug from the shell by separating the pin tumblers at the shear line, one at a time.
(v.) 2. To unlock a cylinder plug from its shell by using a shim.
Source: Lock Industry Standards and Training (LIST) Council
Shoe-
(n.) 1. A bracket which attaches the arm of a door closer to the door or frame.
(n.) 2. The surface mounted case and guide components of an exit device.
(n.) 3. A mortise lock component which transfers pivoting motion of a thumbpiece to linear movement of the latch bolt.
Source: Lock Industry Standards and Training (LIST) Council
Shoulder-
(n.) Any key stop other than a tip stop.
Source: Lock Industry Standards and Training (LIST) Council
See also: “bow stop”
Shouldered Chamber-
(n.) A pin chamber with an internal shelf that limits travel of a complementarily shaped bottom pin.
Source: Lock Industry Standards and Training (LIST) Council
Shouldered Pin-
(n.) A pin tumbler shaped as to prevent it from fully entering an unoccupied keyway or limit its travel within a pin chamber.
Source: Lock Industry Standards and Training (LIST) Council
Shouldered Spindle-
(n.) In a safe lock, a spindle with a larger uniform diameter toward outside to prevent punching the spindle into the container.
Source: Lock Industry Standards and Training (LIST) Council
Shove Knife-
(n.) A tool used with a set-up plug which pushes the springs and pin tumblers into the cylinder shell.
Source: Lock Industry Standards and Training (LIST) Council
Showcase Lock-
(n.) Normally a ratchet lock or plunger lock used on bypassing doors.
Source: Lock Industry Standards and Training (LIST) Council
Shrouded Shackle-
(n.) A shackle which is protected from cutting or tampering by design or by the use of secondary shields.
Source: Lock Industry Standards and Training (LIST) Council
Shunt Switch-
(n.) A maintained contact switch, often key operated.
Source: Lock Industry Standards and Training (LIST) Council
Shut Out Key-
(n.) Usually used in hotel keying systems, a key which will make the lock inoperative to all other keys in the system except the emergency master key, display key, and some types of shut out keys.
Source: Lock Industry Standards and Training (LIST) Council
Shut Out Mode-
(n.) The state of a hotel function lockset which prevents operation by all keys except the emergency master key, display key, and some types of shut out keys.
Source: Lock Industry Standards and Training (LIST) Council
Shutter-
(n.) 1. A spring-loaded device which closes upon the removal of a cylinder tailpiece, protecting a locking device from being manipulated.
(n.) 2. A spring-loaded device which covers a cylinder keyway when the key is not in it.
Source: Lock Industry Standards and Training (LIST) Council
Shutter Spring-
(n.) A spring which returns the shutter on a lock to the closed position.
Source: Lock Industry Standards and Training (LIST) Council
Sickle Key-
(n.) A key in the form of a sickle inserted through a hole in a door to actuate a bolt on the opposite side of the door.
Source: Lock Industry Standards and Training (LIST) Council
Side Milling Slotter-
(n.) A key machine cutting wheel with a squared edge that can cut on the side as well as the periphery of the wheel.
Source: Lock Industry Standards and Training (LIST) Council
Side Sheath-
(n.) A portion of a multi-part pin tumbler lock plug used to complete the shear line fully around the plug.
Source: Lock Industry Standards and Training (LIST) Council
Side Ward-
(n.) A ward which prevents entry of an incorrect key into a non cylinder lock.
Source: Lock Industry Standards and Training (LIST) Council
Side Ward Cut-
(n.) A cut made into a key to bypass a side ward.
Source: Lock Industry Standards and Training (LIST) Council
Sidebar Lock-
(n.) A lock mechanism which incorporates a sidebar.
Source: Lock Industry Standards and Training (LIST) Council
Sidebar-
(n.) A cylinder locking member mounted longitudinally in a plug, which engages multiple tumblers.
Source: Lock Industry Standards and Training (LIST) Council
Sidecode Variant-
(n.) A master keying style of pin tumbler locks which uses the keying capabilities of the secondary security technology to effect master keyed locking. Obtaining a single key in the system does not reveal the same secondary combination of all keys.
Source: Lock Industry Standards and Training (LIST) Council
Sidewinder Key-
(n.) Typically an automotive key with a bitting(s) milled into the widest side(s) of the key blade with an end milling cutter.
Source: Lock Industry Standards and Training (LIST) Council
Silent Signal-
(adj.) Describes an alarm that annunciates detection to a remote location instead of a local location.
Source: Lock Industry Standards and Training (LIST) Council
Simple Latch-
(n.) A non deadlocking latch.
Source: Lock Industry Standards and Training (LIST) Council
Simplex Key Section-
(n.) A single independent key section which cannot be used in a multiplex key system.
Source: Lock Industry Standards and Training (LIST) Council
Simultaneous Retraction-
(n.) A feature which allows retraction of both the deadbolt and latchbolt in the same operation.
Source: Lock Industry Standards and Training (LIST) Council
Single Acting (Door)-
(n.) A door which swings from the latched position in only one direction.
Source: Lock Industry Standards and Training (LIST) Council
Single Acting Lever Tumbler-
(n.) A lever tumbler which must be moved a minimum distance to allow travel of a bolt, but cannot be moved so far as to restrict travel of the bolt.
Source: Lock Industry Standards and Training (LIST) Council
Single Cylinder-
(adj.) Pertaining to a lock with key operation from only one side.
Source: Lock Industry Standards and Training (LIST) Council
Single Key Section-
(n.) An individual key section which can be used in a multiplex key system.
Source: Lock Industry Standards and Training (LIST) Council
Single Step Progression-
(n.) A progression using a one increment difference between bittings of a given position.
Source: Lock Industry Standards and Training (LIST) Council
Single-D-
(adj.) The shape of a cutout for a lock, circular except for a flat section on one side.
Source: Lock Industry Standards and Training (LIST) Council
Six Column Progression-
(n.) A process wherein key bittings are obtained by using the cut possibilities in six columns of the key bitting array.
Source: Lock Industry Standards and Training (LIST) Council
Six Pin Master Key-
(n.) A master key for all combinations obtained by progressing six bitting positions.
Source: Lock Industry Standards and Training (LIST) Council
SKCS-
(abb.) Standard Key Coding System
Source: Lock Industry Standards and Training (LIST) Council
SKD-
(sym.) Symbol for "single keyed", normally followed by a numerical designation in the standard key coding system; e.g., SKD1, SKD2, etc. It indicates that a cylinder or lock is not master keyed but is part of the keying system.
Source: Lock Industry Standards and Training (LIST) Council
Skeleton Key-
(n.) 1. A key with a large portion of the bit filed away so that it can open different locks. Also called passkey.
(n.) 2. A passkey with much of the bit filed away so that it can open different locks.
Source: Dictionary.com
(n.) Any non cylinder key whose bit, blade, and/or post is cut away enough to allow it to enter and turn in locks with different ward arrangements.
Source: Lock Industry Standards and Training (LIST) Council
Slide Hammer-
(n.) A tool made from a rod with a handle, a sliding weight on the rod, and a means of attaching to a part to force its movement relative to other parts.
Source: Lock Industry Standards and Training (LIST) Council
Slider-
(n.) A tumbler which is normally flat, has a gate and moves with a linear or lateral motion instead of pivoting like a lever tumbler.
Source: Lock Industry Standards and Training (LIST) Council
Slim Jim-
(n.) A narrow strip of spring steel used to bypass the cylinder and unlock vehicle doors.
Source: Lock Industry Standards and Training (LIST) Council
Sling-
(n.) A cable or layered length of fabric, (usually the latter), with woven loops in both ends, used to lift a safe or vault door with a boom arm lift or forklift.
Source: Lock Industry Standards and Training (LIST) Council
Slotter-
(n.) A key machine cutter designed to make cuts with a rectangular shape.
Source: Lock Industry Standards and Training (LIST) Council
Small Format Interchangeable Core-
(n.) An interchangeable core that replicates the functionality and design popularized by Best.
Source: Lock Industry Standards and Training (LIST) Council
Smartcard-
(n.) A card conforming to ISO specification 7810 and 7816 which one or more integrated circuits with contacts allowing interface to external equipment.
Source: Lock Industry Standards and Training (LIST) Council
SMK-
(abb.) Sub-Master Key
Source: Lock Industry Standards and Training (LIST) Council
SMNA-
(abb.) Safe Manufacturers' National Association
Source: Lock Industry Standards and Training (LIST) Council
Smokeproof-
(adj.) Referring to an area or opening protected against the penetration of smoke.
Source: Lock Industry Standards and Training (LIST) Council
Snap Bow-
(n.) 1. A separate bow which can be affixed to a smaller key bow.
(n.) 2. A bow which retrofits transponder technology to conventional keys for use in access control systems.
Source: Lock Industry Standards and Training (LIST) Council
Software Key-
(n.) Data used by software to provide or deny access.
Source: Lock Industry Standards and Training (LIST) Council
See also: “hardware key”
Spacing-
(n.) The dimensions from the stop to the center of the first cut and/or to the centers of successive cuts.
Source: Lock Industry Standards and Training (LIST) Council
Spanner Wrench-
(n.) A tool for installing, removing or adjusting a threaded part. The tool is designed to engage one or more holes or depressions which are peripheral or not on-center to the part axis.
Source: Lock Industry Standards and Training (LIST) Council
Spare Tire Lock-
(n.) A lock designed to prevent removal of a vehicle's spare tire.
Source: Lock Industry Standards and Training (LIST) Council
Special Application Cylinder-
(n.) Any cylinder other than a mortise, rim, key-in-knob or profile cylinder.
Source: Lock Industry Standards and Training (LIST) Council
Spider Cam-
(n.) A rotary mechanism serving to simultaneously control the operation of multiple bolts with a radial arrangement.
Source: Lock Industry Standards and Training (LIST) Council
Spider Lock-
(n.) A lock that utilizes a special cam as an integral part of the lock to extend or retract the multiple bolts of the lock simultaneously.
Source: Lock Industry Standards and Training (LIST) Council
Spindle-
(n.) A component which transfers rotary motion from outside a lock or latch case to an inner mechanism.
Source: Lock Industry Standards and Training (LIST) Council
Spline-
(n.) A groove in a combination lock spindle designed to accept a spline key.
Source: Lock Industry Standards and Training (LIST) Council
Spline Key-
(n.) A device inserted to position the drive cam relative to the spindle in a combination lock.
Source: Lock Industry Standards and Training (LIST) Council
Spline Way-
(n.) A notch in a combination lock drive cam designed to accept a spline key.
Source: Lock Industry Standards and Training (LIST) Council
Split Astragal-
(n.) An astragal constructed of two pieces; each piece being mounted on either door of the pair, and abutting to create a seal.
Source: Lock Industry Standards and Training (LIST) Council
Split Bolt-
(adj.) Two separate bolts housed in the same opening in a face of a lock, each operated independently from opposite sides of the door.
Source: Lock Industry Standards and Training (LIST) Council
Split Finish-
(adj.) Of or pertaining to a lockset whose finish is different on each side of the door.
Source: Lock Industry Standards and Training (LIST) Council
Split Hub-
(n.) A two-piece hub which can allow motion from one side of a swivel spindle while preventing it from the other side.
Source: Lock Industry Standards and Training (LIST) Council
Split Pin Master Keying-
(n.) A method of master keying a pin tumbler cylinder by installing master pins into one or more pin chambers.
Source: Lock Industry Standards and Training (LIST) Council
Split Spindle-
(n.) A multi piece spindle which allows a knob or lever to be installed on only one side of a door.
Source: Lock Industry Standards and Training (LIST) Council
Split Wafer-
(n.) Disc tumblers which are approximately half the width of a full tumbler used in the same lock, and are paired adjacent to one another in the same cut position. Typically used in automotive locks.
Source: Lock Industry Standards and Training (LIST) Council
Spool Pin-
(n.) Usually a top pin which resembles a spool, typically used to increase pick resistance.
Source: Lock Industry Standards and Training (LIST) Council
Spring Cover-
(n.) A device for sealing one or more pin chambers.
Source: Lock Industry Standards and Training (LIST) Council
Spring Hinge-
(n.) A hinge incorporating a mechanism to apply automatic closing force.
Source: Lock Industry Standards and Training (LIST) Council
Spring Latch-
(n.) A latch operated under spring pressure, having no deadlatching feature.
Source: Lock Industry Standards and Training (LIST) Council
Spring Seat-
(n.) The point at which a spring is anchored, located or attached and at which (from which) it exerts force.
Source: Lock Industry Standards and Training (LIST) Council
Spy-Proof Dial-
(n.) A dial and dial ring that complement each other to limit viewable numbers to a range of approximately 10 at a time.
Source: Lock Industry Standards and Training (LIST) Council
Square Back-
(adj.) Pertaining to a rim cabinet lock whose mounting flanges and case form the general shape of a square.
Source: Lock Industry Standards and Training (LIST) Council
Square Corner Latch-
(n.) A latch with a face whose sides meet at 90 degree angles.
Source: Lock Industry Standards and Training (LIST) Council
Stand Alone-
(n.) A self contained electronic lock device.
Source: Lock Industry Standards and Training (LIST) Council
Standard Key Coding System-
(n.) An industry standard and uniform method of designating all keys and/or cylinders in a master key system. The designation automatically indicates the exact function and keying level of each key and/or cylinder in the system, usually without further explanation.
Source: Lock Industry Standards and Training (LIST) Council
Standard Progression Format-
(n.) A systematic method of listing and relating all change key combinations to all master key combinations in a master key system. The listing is divided into segments known as blocks, horizontal groups, vertical groups, rows, and pages, for levels of control.
Source: Lock Industry Standards and Training (LIST) Council
Standards-
(n.) A set of specifications relating to materials, finishes, construction, resistance, or strength that typically establish a minimum acceptable value.
Source: Lock Industry Standards and Training (LIST) Council
Staple-
(n.) The portion of a hasp assembly with the hole or opening to receive a padlock.
Source: Lock Industry Standards and Training (LIST) Council
Step Pin-
(n.) A spool or mushroom pin which has had a portion of its end machined to a smaller diameter than the opposite end. It is typically used as a top pin to improve pick resistance by some manufacturers of high security cylinders.
Source: Lock Industry Standards and Training (LIST) Council
Stepped Tumbler-
(n.) A special (usually disc) tumbler used in master keying. It has multiple bearing surfaces for blades of different key sections.
Source: Lock Industry Standards and Training (LIST) Council
Stile-
(n.) The vertical construction member located on either edge of a door.
Source: Lock Industry Standards and Training (LIST) Council
Stop (Of A Door)-
(n.) The projecting portion of a doorframe upon which the door rests when closed.
Source: Lock Industry Standards and Training (LIST) Council
Stop (Of A Key)-
(n.) The part of a key from which all cuts are indexed and which determines how far the key enters the keyway.
Source: Lock Industry Standards and Training (LIST) Council
Stop Gauge-
(n.) The part of a key machine that aligns a key blank, a pattern key, or both, so that the blank may be cut correctly.
Source: Lock Industry Standards and Training (LIST) Council
Stop Works-
(n.) A button or toggle mechanism which prevents operation of a knob, lever or thumbpiece in a non-bored lock.
Source: Lock Industry Standards and Training (LIST) Council
Stop Works Button(s)-
(n.) A one or two-piece stop works activator.
Source: Lock Industry Standards and Training (LIST) Council
Store Door Function-
(n.) A lockset function in which: a) a deadbolt is operated by key from either side and a latch is operated by working trim from either side; or b) a deadlocking latch can be withdrawn by working trim from either side except when both sides are locked by key from either side.
Source: Lock Industry Standards and Training (LIST) Council
STPRP-
(abb.) “Safe Technicians Proficiency Registration Program”; the certification program of SAVTA as administered by ALOA.
Source: Lock Industry Standards and Training (LIST) Council
Straight Knife-
(n.) A bypass tool for manipulating a spring bolt directly behind the cylinder plug.
Source: Lock Industry Standards and Training (LIST) Council
Strike Locator-
(n.) A tool used to mark the jamb, relative to the bolt of the lock, prior to strike installation.
Source: Lock Industry Standards and Training (LIST) Council
Strike Reinforcer-
(n.) A metal plate mounted behind a strike, using long screws to secure it to the door frame.
Source: Lock Industry Standards and Training (LIST) Council
Strike-
(n.) A bolt receptacle typically mounted in the door jamb or the floor.
Source: Lock Industry Standards and Training (LIST) Council
Strikethru Keying-
(n.) A means of shaping a key bitting by tooling which presses the key in such a way as to leave an indentation on one bitted surface or side of the key, and a protrusion on the other.
Source: Lock Industry Standards and Training (LIST) Council
Stump-
(n.) The stationary fence(s) in a lever lock.
Source: Lock Industry Standards and Training (LIST) Council
Sub-Master Key-
(n.) The master key level immediately below the master key in a system of six or more levels of keying.
Source: Lock Industry Standards and Training (LIST) Council
Substitution Code-
(n.) A code whose individual characters are converted to individual key cuts or combination numbers by means of a reference table.
Source: Lock Industry Standards and Training (LIST) Council
Suffolk Latch-
(n.) A door latch consisting of a horizontal bar which moves vertically to unlatch on the inside, actuated by a thumb piece on the outside.
Source: Lock Industry Standards and Training (LIST) Council
Supervised Security Seal-
(n.) A device which provides visual indication of tampering and includes the ability to be connected into electronic security systems.
Source: Lock Industry Standards and Training (LIST) Council
Surface Pull-
(n.) A handle or grip attached to the surface of a door or drawer.
Source: Lock Industry Standards and Training (LIST) Council
Sweep-
(n.) The radiused part of a lever tumbler with which the key makes contact.
Source: Lock Industry Standards and Training (LIST) Council
Sweep Speed-
(n.) The speed at which a closer moves a door from open to the point where latching speed is engaged.
Source: Lock Industry Standards and Training (LIST) Council
Swing Clear Hinge-
(n.) A hinge that allows the door to swing far enough away from the jamb to fully clear the opening at 90 degrees open.
Source: Lock Industry Standards and Training (LIST) Council
Switch Lock-
(n.) 1. A lock which incorporates an electrical switch as an integral part of its construction.
(n.) 2. A large padlock designed for use on railroad switches.
Source: Lock Industry Standards and Training (LIST) Council
Swivel Spindle-
(n.) Normally a two-piece spindle assembly whose two halves are designed to turn independently.
Source: Lock Industry Standards and Training (LIST) Council
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