This is a roller is used on bottom mount installations. It is a 1 inch steel ball bearing roller with a 1/4-inch axle hole. The 1/4-20 x 3/4-inch carriage bolt inserts through the screen door frame and through the roller and is then secured in the bottom rail with a nut.
- Steel ball bearing roller 1 In. diameter
- Wheel is center grooved
- Fits on many door manufacturers
- Wide groove design
