This kit is perfect for mounting of a Coolplex reservoir mount e.g. on the case side panel. The robust M4 screws fit perfectly: The head disappears completely in the mounting clips, the washer and nut can be screwed on from the other side for safe fixation. Also compatible with the Plexiac. Extent of delivery: 2 pieces M4 cross-slotted screw 2 pieces M4 washer 2 pieces M4 nut Important: Only compatible with the new transparent mounting clips.