Prime-line B 513 Screen Door Roller Assembly, 1 In., 2-pk.

This roller assembly is designed for sliding screen and patio doors. The package includes two complete roller units, each featuring a 1-inch steel ball bearing roller paired with a heat-treated M-shaped tension spring. These assemblies are used by several patio door manufacturers as original equipment and help restore proper tension and smooth operation to screen doors.

The Prime-Line B 513 provides the proper tension spring shape and ball bearing design that many patio door manufacturers incorporate into their products. The M-shaped spring design delivers the precise amount of pressure needed to keep the door tracking smoothly in its frame without requiring adjustment.

Features and Benefits

• 1-Inch Steel Ball Bearing Roller: Minimizes friction and wear on the door frame, ensuring smooth sliding action.
• Heat-Treated M-Shaped Tension Spring: The spring's distinctive M shape provides the precise tension required for proper door operation without adjustment.
• Two Per Package: Comes with two complete assemblies, allowing you to replace both rollers or have a spare.
• OEM-Compatible Design: Used by several sliding screen door and patio door manufacturers as original equipment.
• Easy Installation: Fits into existing door hardware without requiring complex tools or modifications.

Specifications

• Brand: Prime-Line
• Model: B 513
• Roller Diameter: 1 in.
• Roller Width: 1/4 in.
• Spring Shape: M-shaped
• Material: Steel, heat-treated
• Quantity: 2 per package