Prime-Line B 548 Center Grooved Roller Assembly, 1 in Dia Roller, 5/16 in W Roller, Steel Roller, Concave Roller

This is a roller is used on bottom mount installations. It is a 1 in steel ball bearing roller with a 1/4 in axle hole. The 1/4-20 x 3/4 in carriage bolt inserts through the screen door frame and through the roller and is then secured in the bottom rail with a nut.
Unit: EA
UPC: 049793005489
Model Number: B 548

• Height: 6.63 in
• Includes: 1/4-20 x 3/4 in Carriage Bolt with Nut
• Mounting Type: Bottom
• Roller Diameter: 1 in
• Roller Material: Steel
• Roller Type: Concave
• Roller Width: 5/16 in
• Suitable for: Sliding Screen Doors Some Glass Patio Doors