Southern Screen Scene has been using the same style of screen door rollers in our security, screen, and flyscreen sliding doors since we started our business over three decades ago. We have done this to ensure that if you need to change one over, it will always fit and line up with the adjustment screw hole. When purchasing new screen door rollers today, they may look a little different from the outside, but will still fit in the hole in the top and bottom of the door.
This picture showcases the Speedfit roller. In years gone by, screen door rollers were riveted into the bottom of the door. With this design, the roller clicks in and holds itself. This makes it easier when the time comes to change one over, as no power tools are required.