You can use a chisel and tap it with a hammer to create a cut deep enough for the hinge to be placed.
Installing spring loaded hinges door.
If the holes align you re good.
Unscrewed 2 screws on the inside of the door mullion.
Use a pencil to mark the surface with the area for the screws.
The global door controls full mortise single acting the global door controls full mortise single acting spring hinges.
Important to know how many coils in the spring.
You can do this by simply holding the new hinge up to the door and checking where the screw holes are.
Place the hex wrench into the socket at the top of the spring hinge and turn in either direction to release tension on the pin.
Test the door close rate.
Remove the pin with a pliers.
Solid brass adjustable half surface screen door hinge with ball finials in satin nickel 1 pair model 80320 015 5.
Rotate the wrench until the next hole comes into view and install the pin.
Tighten or loosen in small steps.
If you re using one spring hinge per door install it in the middle hinge position with standard hinges at.
Because of this you need to create an indent on the surface for the hinge to sit.
Screw the spring hinges to the door so that the slotted section on each hinge is on top.
This 3 knuckled hinges is adjustable and the spring tension can be increased or decreased by using included adjusting tool.
Took off 3 caps that protect the hinges lifted the mullion door just enough to allow you to put the spring in the slots on the bottom of the door.
Step 3 drill a pilot hole.
Super easy and was able to repair the mullion door with just purchasing the spring.