If you're attaching a screw cover (see our screw covers for options) but aren't using one of the One Piece Snap-On styles, you need to use a Base. The base provides a solid edge on which to snap on and keep the cover attached.
Just install the base under the head of the screw or rivet and push the cover on to the base. DONE!
Sold in bags of 100 or 1000. Can be used with the #10 size screw cover, in any color!