Prime-Line 1 in. Nylon Screen Door Roller Assembly B 551

This roller is used by Air Control sliding screen doors as well as glass patio doors using a narrow grooved roller. It is used in various applications by many patio door manufacturers. It is a high density polyethylene roller 1 in. in diameter by 7/32 in. thick. It has a 1/4 in. axle hole. This roller comes with a 8-32 x 3/8 in. machine screw and binder post for installation into the bottom screen frame rail.