2.  Insert a wall anchor of the appropriate size into each hole. 
3.  Fasten a DIN 96 3.5 x 20 wood screws (not supplied) into each of the wall anchors. 
Make sure that the heads extend sufficiently (about 3/16 inch or 5 mm) from the wall 
for the device's keyholes to hang on: 
Figure  4-3: Protruded Screw Distance from Wall Surface 
 
4.  Mount the device on the wall by hanging the device's keyholes on the screw heads.