Help Identify Window & Screen Parts

I'm trying to locate these two parts. The one on the left is a screen retainer of sorts - 1.5-inches long & snaps into the exterior side of the sash to support or center the screen. The part on the right is a 1/2-inch wide sash guide that is screwed to the frame and clips over the edge of the sash to help the sash slide and prevent metal-to-metal contact.