- Works with Perma-Shield Gliding Patio Doors and Casement Windows manufactured from 1985 to Present.
- Use for non-standard pattern grilles for venting and casement/awning stationary or picture units with a vinyl lip next to glass.
- This fastener has no barbs and is pushed between the sash vinyl stop and glass (on the interior). Allows wood grilles to fasten in the window and be removed for cleaning.
- Used with grilles that are drilled at the tip of each spoke.