Installation Info
DOOR & FRAME PREPARATION:
  Note: Note: To insure lift-off capability, 
  the lower knuckle must be installed on the frame, the upper knuckle on the door.
  
  Note: For non lift-off mounting use one type 
  “A” and one type “B” hinge per door. One hinge knuckle must be mounted AFTER 
  the door is hung.
  
  
  
 
Maximum screw length = door (or frame) thickness + 5 (.200). (Screws not supplied). 
  For door to open a full 180°, one of the two dimensions, R or S, must be less 
  than 19.9 (.782).