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=Security Pin=
=Security Pin=


A '''security pin''' is a modified version of a key or driver pin in a [[pin-tumbler]] lock that makes manipulation more difficult. Security pins are commonly designed to prevent [[lockpicking]], but are also designed to resist [[decoding]], [[impressioning]], [[key bumping]], and other compromise techniques. Similar modifications to components in non-pin locks are also common, with serrated components being the most popular in both [[wafer]] and [[lever]] locks. [[Combination]] and [[disc-detainer]] locks commonly use false gates to prevent manipulation.
A '''security pin''' is a modified version of a driver or key pin in a [[Pin_tumbler|pin-tumbler]] lock that makes manipulation more difficult. Security pins are commonly designed to prevent [[lockpicking]], but are also designed to resist [[decoding]], [[impressioning]], [[key bumping]], and other compromise techniques. Similar modifications to components in non-pin locks are also common, with serrated components being the most popular in both [[wafer]] and [[lever]] locks. [[Combination]] and [[Disc_detainer|disc-detainer]] locks commonly use false gates to prevent manipulation.


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== Principles of operation ==
== Principles of operation ==


Security pins are designed so that use of a tool other than a key will trigger the pins and lock one or more pins at the [[shear line]]. This can be due to individual manipulation of components or [[tension]] on the cylinder. When triggered, security pins bind between the [[plug]] and [[cylinder]], blocking the rotation of the plug until tension on the cylinder is released and pins are dropped back to their resting position.
Security pins are designed so that use of a tool other than a [[Key|key]] will trigger the pins and lock one or more pins at the [[shear line]]. This can be due to individual manipulation of components or [[tension]] on the cylinder. When triggered, security pins bind between the [[plug]] and [[cylinder]], blocking the rotation of the plug until tension on the cylinder is released and pins are dropped back to their resting position.


== Types of security pins ==
== Types of security pins ==
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File:Security_pin_mushroom.jpg|Common mushroom design.
File:Security_pin_mushroom.jpg|Common mushroom design.
File:Security_pin_spool.jpg|Common spool design.
File:Security_pin_spool.jpg|Common spool design.
File:American 1100_serrated_spool_driver-Reinder.png |Hybrid design.
File:American5200pins.jpg|Common serrated and "spoorated" designs.
File:American5200pins.jpg|Common serrated and "spoorated" designs.
File:Abloy_Protec_4-cut_disc-EffOr.png |A disc design with false gates and serrations.
</gallery></div>
</gallery></div>


; Mushroom
; {{Anchor|Mushroom}}Mushroom
: A top or bottom pin with a beveled cut around their circumfrence, resembling a mushroom shape. Top pin mushroom designs are much more common, but companies like [[Mul-T-Lock]] use them for bottom pins, as well.
: A driver or key pin with a bevelled cut around their circumference, resembling a mushroom shape. Driver pin mushroom designs are much more common, but companies like [[Mul-T-Lock]] and [[ABUS]] use them for key pins, as well.


; Spool
; {{Anchor|Spool}}Spool
: A top pin with a portion of the center removed, resembling a spool or barbell shape. Triggers when the center of the spool is caught at the shear line.
: A driver or key pin with a portion of the center removed, resembling a spool or barbell shape. It triggers when the center of the spool is caught at the shear line.  "Barrel" pins are double spools.  "Gins" are off-center spools, similar to mushrooms.


; Serrated
; {{Anchor|Serrated}}Serrated
: A top or bottom pin with light serrations around the circumfrence of the pin. Triggers when a serration is caught at the shear line.
: A driver or key pin with light serrations around the circumference of the pin. It triggers when a serration is caught at the shear line.


; Hybrid
; Hybrid
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<div align="center"><gallery>
<div align="center"><gallery>
File:Medeco_Biaxial_pins.jpg|[[Medeco Biaxial]]; mushroom top pins (gold).
File:Security pins - MTL, Schlage, Goal - FXE47739.jpg | Security pins from [[Mul-T-Lock Interactive]], [[Schlage]] residential cylinder, and [[Goal V18]].
File:Medeco_Biaxial_bottom_pin.jpg|A [[Medeco Biaxial]]; pin with false [[sidebar]] groove and anti-[[decoding]] ring.
File:American_1100_serrated_keypin-Reinder.png |An [[American Lock 1100]] serrated key pin.
File:KABA_Gemini_bottom_pin.jpg|[[KABA Gemini]]; serrated key pin.
File:LIPS_Octro_bottom_pins.jpg|[[LIPS Octro]] security pins (key pins).
File:LIPS_Octro_top_pins.jpg|[[LIPS Octro]] security pins (driver pins).
File:Medeco_Biaxial_pins.jpg|[[Medeco Biaxial]]; mushroom drivers (gold).
File:Medeco_Biaxial_bottom_pin.jpg|A [[Medeco Biaxial]] pin with false [[sidebar]] groove and anti-[[decoding]] ring.
File:Medeco_Biaxial_ARX_micro_milled.jpg|[[Medeco Biaxial]]; pin with anti-decoding ring and micro-milled sidebar slot.
File:Medeco_Biaxial_ARX_micro_milled.jpg|[[Medeco Biaxial]]; pin with anti-decoding ring and micro-milled sidebar slot.
File:KABA_Gemini_bottom_pin.jpg|[[KABA Gemini]]; serrated bottom pin.
File:ASSA_Twin_V10_all_pins.jpg|[[ASSA Twin V-10]]; double spool driver pins.
File:ASSA_Twin_V10_all_pins.jpg|[[ASSA Twin V-10]]; double spool top pins.
File:ASSA_Twin_V10_sidebar_pins.jpg|[[ASSA Twin V-10]]; serrated [[side pin]]s.
File:ASSA_Twin_V10_sidebar_pins.jpg|[[ASSA Twin V-10]]; serrated [[side pin]]s.
File:ASSA_Twin_Combi_all_pins.jpg|[[ASSA Twin Combi]]; graduated and double spool top pins.
File:ASSA Twin 2 barrel-Reinder.png |[[ASSA Twin V-10|ASSA Twin 2]]; double spool "barrel" driver pin.
File:ASSA_Twin_Combi_all_pins.jpg|[[ASSA Twin Combi]]; graduated and double spool driver pins.
File:ASSA_Twin_Combi_security_pins.jpg
File:ASSA_Twin_Combi_security_pins.jpg
File:Miracle_Magnetic_security_pin.jpg|[[Miracle Magnetic]] spool pin.
File:Miracle_Magnetic_security_pin.jpg|A [[Miracle Magnetic]] spool pin.
File:MIWA_3800_driver_pins.jpg|[[MIWA 3800]] security pins.
File:MIWA_3800_driver_pins.jpg|[[MIWA 3800]] security pins.
File:Hi-Shear_lipped_musroom_pin.JPG|[[Hi-Shear LK1200]] security pins.
File:Scorpion_CX5_pins_close.jpg|[[Scorpion CX-5]] security pins.
File:Scorpion_CX5_pins_close.jpg|[[Scorpion CX-5]] security pins.
File:LIPS_Octro_bottom_pins.jpg|[[LIPS Octro]] security pins (key pins).
File:Hi-Shear_lipped_musroom_pin.JPG|[[Hi-Shear]] LK1200 security pins.
File:LIPS_Octro_top_pins.jpg|[[LIPS Octro]] security pins (driver pins).
</gallery></div>
</gallery></div>
== Security pin illustrations ==
<gallery align=center>
File:SecurityPin-Spool-mgsecure.jpg | Spool
File:SecurityPin-Serrated-mgsecure.jpg | Serrated
File:SecurityPin-Spoorated-mgsecure.jpg | "Spoorated"
File:SecurityPin-Double-Spool-mgsecure.jpg | Double Spool
File:SecurityPin-Mushroom-mgsecure.jpg | Mushroom
File:SecurityPin-Tapered-mgsecure.jpg | Tapered
File:SecurityPin-Trampoline-mgsecure.jpg | Trampoline
File:SecurityPin-Barrel-mgsecure.jpg | Barrel
File:SecurityPin-Barrel-Spool-mgsecure.jpg | Barrel Spool
File:SecurityPin-T-Pin-mgsecure.jpg | T-Pin
File:SecurityPin-Drunken-Spool-mgsecure.jpg | "Drunken Spool"
File:SecurityPin-Gin-Bottle-Spool-mgsecure.jpg | Gin Bottle Spool
File:SecurityPin-Key-Pin-Spool-mgsecure.jpg | Spool Key Pin
File:SecurityPin-Key-Pin-Serrated-mgsecure.jpg | Serrated Key Pin
File:SecurityPin-Key-Pin-Torpedo-mgsecure.jpg | Torpedo Key Pin
</gallery>
== External links ==
* Artichoke2000 [https://www.youtube.com/watch?v=Y3ciLPPeSfc "The Theory of Picking Tapered Drivers"](video)


== See also ==
== See also ==


* [[Pin-tumbler]]
* [[Pin_tumbler|Pin-tumbler]]
* [[Side pin]]
* [[Side pin]]
* [[Sidebar]]
* [[Sidebar]]
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* [[High security locks]]
* [[High security locks]]


[[Category:High security locks| ]]
[[Category:Locks]]
[[Category:Locks]]
[[Category:Lockpicking]]
[[Category:Lockpicking]]

Latest revision as of 17:30, 7 December 2022

Security Pin

A security pin is a modified version of a driver or key pin in a pin-tumbler lock that makes manipulation more difficult. Security pins are commonly designed to prevent lockpicking, but are also designed to resist decoding, impressioning, key bumping, and other compromise techniques. Similar modifications to components in non-pin locks are also common, with serrated components being the most popular in both wafer and lever locks. Combination and disc-detainer locks commonly use false gates to prevent manipulation.

Principles of operation

Security pins are designed so that use of a tool other than a key will trigger the pins and lock one or more pins at the shear line. This can be due to individual manipulation of components or tension on the cylinder. When triggered, security pins bind between the plug and cylinder, blocking the rotation of the plug until tension on the cylinder is released and pins are dropped back to their resting position.

Types of security pins

  • Common mushroom design.

  • Common spool design.

  • Hybrid design.

  • Common serrated and "spoorated" designs.

  • A disc design with false gates and serrations.

Mushroom
A driver or key pin with a bevelled cut around their circumference, resembling a mushroom shape. Driver pin mushroom designs are much more common, but companies like Mul-T-Lock and ABUS use them for key pins, as well.
Spool
A driver or key pin with a portion of the center removed, resembling a spool or barbell shape. It triggers when the center of the spool is caught at the shear line. "Barrel" pins are double spools. "Gins" are off-center spools, similar to mushrooms.
Serrated
A driver or key pin with light serrations around the circumference of the pin. It triggers when a serration is caught at the shear line.
Hybrid
A combination of the previous three designs. For example, "spoorated" is a spool pin with serrations on the outer edges of the pin.

Gallery


Security pin illustrations

  • Spool

  • Serrated

  • "Spoorated"

  • Double Spool

  • Mushroom

  • Tapered

  • Trampoline

  • Barrel

  • Barrel Spool

  • T-Pin

  • "Drunken Spool"

  • Gin Bottle Spool

  • Spool Key Pin

  • Serrated Key Pin

  • Torpedo Key Pin

External links


See also

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