Mul-T-Lock HDC Grade 1 Hercular Captive Key Deadbolt

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Details: Mul-T-Lock HDC Grade 1 Hercular Captive Key Deadbolt


High Security deadbolt system for commercial and residential doors.


90˚ key rotation throws the bolt 1" towards the frame, interlocking two hardened ball bearings with the strike to increase jimmying resistance.


  • Standard faceplate
  • Drive in (for beveled doors)
  • Double cylinder
  • Single cylinder
  • Captive key deadbolt


  • Ring and cylinder: solid brass
  • Bolt anti drilling ring: hardened steel
  • Strike: steel
  • Pins: nickel silver and stainless steel


Nickel chrome matte; Nickel chrome; PVD
Special finishes
Antique brass; 10B
Lifetime finishes
US3; US26; US26D; US5A; US10B6

Additional features

  • Suitable for two backsets, no need for different parts
  • Supplied as standard with 1" (25 mm) throw
  • Thumbturn tail adjustable to door width
  • Thumbturn can be set horizontally or vertically in locked position

Cylinder mechanism

Mul-T-Lock's unique, high-precision pin tumbler system.


Reversible nickel silver key with plastic key head and colored insert. Also available in all nickel silver.

Cylinder platforms

Classic; Interactive®+

Cylinder options

  • Keyed different
  • Keyed alike
  • Master keyed
  • '3 IN 1' (changeable combination)


UL437; UL; Conforms to ANSI GRADE 1

Spacers required for doors less than 38 mm width.


Available Model Numbers and Combinations

HDC-5 Standard, Bright Brass
HDC-26 Standard, Satin Chrome
HDC-9 Standard, Antique Brass
HDC-13 Standard, Oxidized Satin Bronze
HDC-19 Standard, Satin Nickel
HDC-22 Standard, Flat Black
HDC-25 Standard, Bright Chrome


deadbolts, locksets, captive-key-deadbolts, captive-key,


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Mul-T-Lock HDC Grade 1 Hercular Captive Key Deadbolt

Mul-T-Lock HDC Grade 1 Hercular Captive Key Deadbolt

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