Button Bumper

Hi these small plastic serated pins are on my sling window two at the top that keep it guided when opening most have simply gone

A window pro recently replaced the glass in one of these windows. In the process, he lost the four little nylon dome-shaped buttons that were attached to the inside face of the moveable part of the single hung frame, cushioning between the moving frame and the fixed one. They were apparently frictio ... (cont.)

I am rebuilding screens for Jeld-Wen Norco windows and need these spacers that snap into the bottom of the screen frame to raise it in the window frame opening.