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Cylinders & Keying

High Security Cylinders

PDQ offers a higher level of security with high security cylinders and proprietary keyway that prevents random duplication of keys. The finest key systems can be destroyed by unauthorized key duplication. The PDQ proprietary keyway is only available from PDQ and is shipped directly to the authorized end user. Each key is registered, and no blank keys are sold. PDQ High Security cylinders are available in a number of formats, including a standard, Key In Knob or Lever cylinder used in most PDQ cylindrical locks, as well as a unique Mortise/ Rim Cylinder that can be used in either configuration. All PDQ High Security Cylinders feature an exclusive and proprietary floating side bar. All standard High Security cylinders feature 2 hardened anti drill pins as well as our unique and proprietary PDQ keyway with sidebar. For additional security, PDQ offers several of its cylinders in a UL437 package. These optional cylinders feature a minimum of 11 anti-drill pins, stainless steel pins and UL437 certification. The UL 437 cylinders are available in Key in Knob/Lever, Mortise and Rim.

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High Security Cylinders

Specs – Key in Knob High Security Cylinder

Default Keyway:
  • Schlage C
Cylinder:
  • UL437
  • 6 pin
  • UL 437 6 Pin Maximum fits standard combination cylinder w/Lazy tailpiece
  • High Security 6 Pin Maximum fits standard combination cylinder w/Lazy tailpiece
Keying:
  • Not available in “0” bitted
Finishes:
  • 605, 613, 626

Specs – Mortise High Security Cylinder

Default Keyway:
  • Schlage C
Cylinder:
  • UL437
  • 6 pin
  • PDQ offers regular, restricted keyway, Patented High Security, and UL 437 cylinders to meet all your keying needs
  • Available 1-1/4” and 1-1/2”
  • Unique Mortise Rim Combo 1-1/8”
  • PDQ Mortise and Spirit line PHL levers accommodate the PDQ high security LFIC cylinder as its format is the same as the Schlage® LFIC configuration.
Keying:
  • High Security and UL 437 keys are NOT available uncut
  • High Security Cut Keys must be ordered through the factory.
  • A registration card is sent with the original order
Finishes:
  • 605, 613, 626

Specs – Small Format Security Cylinder

Default Keyway:
  • BEST A
  • Cylinders are similar to “BEST®” with regards to its functionality but with the added security of the sidebar mechanism
  • The sidebar mechanism rests inside the plug of the core making it unnecessary to dismantle to combinate or pin the cylinder
Cylinder:
  • 6 or 7 pin
Finishes:
  • 626

Specs – Large Format Security Cylinder

Default Keyway:
  • BEST A
Cylinder:
  • 6 pin
  • Cylinders are available in high security and UL437.
  • PDQ’s Large Format IC Cylinders utilize the Schlage® format
Keying:
  • Not available in “0” bitted
Finishes:
  • 626

Architectural Finishes

  • 605 (US3) - Bright Brass, Clear Coated

  • 613 (US10B) - Oil Rubbed Bronze, Oxidized Satin Bronze, Oil Rubbed, No Coating

  • 626 (US26D) - Satin Chrome Plated, No Coating

Compatible Keyways

Keyways

Key Systems Design

Master Key System
Master Key System

Keying Chart

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Proprietary Keyways

Keyway (Best SFIC Compatible)PDQ Keyway Designator
PDQ ExclusivePDQ1
PDQ2
PDQ Exclusive
and Restricted		PDQ3
Keyway (Conventional and Schlage LFIC Compatible)TA