This locking device from Schellenberg protects your roller shutters from being opened from outside. The Schellenberg locking device is easily clamped onto both sides of the roller shutter between the slats and the guiding rail. If the roller shutter is attempted to be lifted from the outside, the locking device is activated and the lifting of the roller shutter becomes very difficult. The device is not noticeable from outside and is compatible with all types of manual roller shutters. Please do not use this locking device for motorized roller shutters.



  • Safety against break-ins (difficult to open the roller shutters from outside)
  • Simply clamped with no tools necessary
  • Not visible from outside
  • More comfort and safety through innovative products in the break-in prevention field 
EAN Number 4003971160038
Item Number INT 16004
Width (mm) 112 mm
Height (mm) 53 mm
Depth (mm) 20 mm
Color silver

Product in use


  • To secure roller shutters from being opened from outside
  • For manually operated roller shutters
  • For roller shutter that correspond with the Schellenberg System MINI and MAXI

Helpful Hints for Installation

  • Clamp the locking device together and clamp it between the roller shutter and the guiding rail
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