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Grade 1 solid cast deadbolts provide optimum security and style, while providing the strength and durability required to withstand high-use environments such as educational, health care and industrial facilities. K2 Grade 2 deadbolts are designed for multi-family dwellings, retail and office environments where stylish yet highly durable security solutions are needed.
QDB100 Grade 1 Deadbolts

The heavy duty QDB 100 series deadbocks are designed for institutional, commercial uses such as educational, health care and industrial facilities where a long-lasting, highly durable product is required. These deadlocks will deliver the operational requirements set forth while withstanding the physical abuse associated with the applied environment.

  • Tested to exceed 1,000,000 cycles, exceeding the 250,000 required to meet Grade 1 certification
  • Solid forged housing provides enhanced strength and durability.
  • Full 1" (25mm) throwbolt with saw resistant hardened steel roller pin.
  • Anti-drill design - two (2) ball bearings inserted to prevent drill attacks.
  • ADA thumbturn.
  • Compartmentalized packaging allows for quick and easy installation.
  • ANSI/BHMA A156.5 Grade 1
  • UL/cUL listed(3-hours) for "A" label single door applications (4' x 8')
  • UL10C / UBC 7-2 (1997) Positive Pressure Rated
  • UL10B Neutral Pressure Rated
  • Door Range - 1 5/8" - 2" (40mm-51mm) standard. Consult factory for special door ranges.
  • Backset - 2 3/4" (70mm) standard. 2 3/8" (60mm) available.
  • UL10C / UBC 7-2 (1997) Positive Pressure Rated
  • Exposed Trim – Solid forged brass, plated to match finish designation.
  • Strike – Standard deadbolt strike 1 1/4" x 2 3/4" (32mm x 70mm). Other strike options also available.
  • Latchbolt – Full 1" Throw with hardened steel roller; Faceplate – 1 1/8" x 2 1/4" (29mm x 57mm).
  • 6-pin brass cylinders. Many keying options available from our factory to include, but not limited to, master keying, grandmaster keying and construction keying. Small Format Interchangeable Core cylinder also available.
  • 2 Keys per lockset
Lifetime mechanical, 3 year finish* & 1 year electronics
*613 finish excluded

80 - Single Cylinder
81 - Single Cylinder I/C
82 - Double Cylinder
83 - Double Cylinder I/C

605 - Bright Brass ; US Code US3
613 - Oil Rubbed Bronze ; US Code US10B
619 - Satin Nickel ; US Code US15
625 - Bright Chrome ; US Code US26
626 - Satin Chrome ; US Code US26D

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