Spacesaver 1091/1291 Series Concealed Mortise Bolt Lock - SDC

SDC 1091/1291
Part #:
$329.39 - $588.09

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Product Overview

Designed and patented by SDC, Spacesaver® right angle bolt locks represent a fundamental innovation in electric locking technology for access control applications. Spacesaver® bolts project at right angles to the lock mechanism, allowing installation of Spacesaver® locks, by means of a simple mortise cutout, in virtually any standard frame, or in most door lock stiles. With the entire lock concealed, aesthetic acceptability is complete, security is greater and installation in old or new construction is fast, easy and economical.

All Spacesaver® locks are equipped with stainless steel bolts, specification grade solenoids and automatic relock ball switches. Bolts rotate freely, making attempts to tamper or cut extremely difficult. Specification grade solenoids facilitate superior overall performance in both force and longevity, when compared to commercial grade solenoids. Automatic relock ball switches keep the bolt retracted while the door is open. The door depresses the ball switch on closure, causing the bolt to project automatically, locking the door. Additionally, ball switches are field adjustable to compensate for wide door gap and bidirectional to permit use on swinging and sliding doors.

Warranty Information

5 Years Limited


  • Action
    Automatic Relock
  • BAA Compliant
  • Bolt
    5/8"Diameter, Solid Stainless Steel
  • Bolt Throw Length
    3/4" (19mm)
  • Country of Origin
  • Electrical Rating
    0.9 A @ 12 VDC, 0.45 A @ 24 VDC Continuous Duty
  • Faceplate Depth
  • Faceplate Height
    8" (8-1/2" for Wood Application or 9" for Mechanical Release)
  • Faceplate Width
  • Includes
    Mounting Tabs & Power Regulator
  • Mounting Location
    Frame Header, Side Jamb or Door Lock Stile
  • Mounting Style
  • Operating Voltage
  • Power
  • Standards
    UL Listed, US and Canada, UL10C Positive Pressure Compliant
  • Strike Size
    4"L x 1-1/2"W x 1/8"D
  • Type
    Right Angle Bolt Lock
  • Unit of Measure
  • Use With
    1-3/4" standard frame
  • Weight
    2 lbs