Pretty much what it is. A residential house, older sliding windows slide right to left to open the window. 4 of these hold the screen in place. The clips were built to last but when someone else forgot where they put them.. The round end that fit's into the casement in about 4/16" so figure 5/16" One side touches the outside of the screen the other inside.
95-058 would to be be a possibility if it was a little thicker. As always thanks for the help!