For this reason you remove a security screen door unit intact.
Remove security screen door bolts.
Removing them is another matter.
Use a good quality screwdriver with sharp square edges.
An old worn screwdriver will probably slip off the notch.
Security screws also known as one way screws are very simple in design.
They are available in either flat head or round head design in sizes ranging from 6 to 14.
This set is ideal for driving and removing one way screws.
The sloped shoulder security screws described above are the type commonly used on security screen doors.
The set includes 3 tools of different sizes to accommodate screws ranging in size from 4 to 14 and larger.