Installation method of anti-theft door lock:
Bolt installation method: Measure whether the specifications of the opening are equal. If it is smaller than the specification of the anti-pry door, the ash degree should be removed. Place the anti-pry door according to the position of the opening, drill holes at the four holes of the iron frame with an M12 drill bit, and fix it with bolts, then make adjustments. The adjustment method is to take the outer surface of the door panel as the reference plane, and check whether the iron door frame is installed parallel to the lower door panel. If the door frame is not parallel to the door panel, add wooden pads near the bolt position on the back of the iron door frame for testing until the door frame is parallel to the door panel.