3/8" Clip-on Metal Retainer

Looking for screen retainer clip 3" long and snaps into a 5/16" slot then the longer flap holds the screen in place

Do you have these "snap buttons"? I do not think that is what they are actually called though. They install into "inside casement" window screens. They snap behind a lip to hold the screen into the frame. Please advise. Thank you, Jason

This part goes in the track of the window to hold the screen in place and keep it from moving around when the wind blows. I have not been able to find a replacement at any home improvement stores. The internet said to contact you to find the right part. It says it is called a glazing bead, u-channel ... (cont.)

The part that holds the window screen in the window frame needs replacing because they are disintegrating (aka falling apart ). So I need to replace this part in all my windows. I need two dozen of them. Please identify and let me know where I can get this OEM unique piece.

I am looking to replace the part that holds the window screen in place (as shown in the pictures). It is plastic measuring 31/2 x 3/4.