Shear Lock
SD-993B-SS
Descriptions
  • Concealed security for remote access and exit control of aluminum and steel doors or gates. Works with sliding, single-action, and double-action (swing-through) doors and gates. Plated steel plugs and magnetic bond holds doors securely in place with approximately 1,500 pounds (680kg) of shear holding force.
  • Fail-safe operation (unlocks if power is lost).
  • Internal adjustable door position switch prevents locking until the door has come to rest.
  • Magnet and dry reed contact switch determine door position for positive locking.
  • Armature plate adjusts to compensate for gaps between door and frame.
  • Use with an optional digital keypad for keyless high security.
  • Easily connects to SECO-LARM's SK-1011-SQ Electronic Keypad.
  • Magnet housing dimensions (faceplate) - 7-1/8" x 1-3/16" x 1-1/16" (180 x 30 x 27 mm).
  • Magnet housing dimensions (cavity) - 5-13/16" x 1-3/16" x 1-1/16" (147 x 30 x 27 mm).
  • Armature assembly dimensions (faceplate) - 7-1/8" x 1-3/16" x 1-5/8" (180 x 30 x 42 mm).
  • Shallow design for use with most metal door jambs.              
  • Zinc-plated magnet and armature, and aluminum anodized housings.
  • Power - 12VDC (420mA) or 24VDC (210mA).
  • Door gap - Max. 1/16" (2mm).
  • Weight - 2lb. 8oz. (1.13kg.)

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Installation Manuals

Product Info Sheet


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SD-993S-SB Surface-Mount Bracket Kit
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Installation Manuals

Product Info Sheet


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SD-993S-UB Glass Door U-Bracket Kit
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Installation Manuals


Product Info Sheet


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Copyright 2008 by SECO-LARM U.S.A., Inc. All rights reserved. Modified:
Manufacturer and Distributor of Security Systems and Accessories Worldwide.