I use something a little different, they are yellow plastic things that you push inside where the rivet use to go. Except that these have a hole where you can screw a screw in. When you do exactly that the yellow things swell up as the screw goes an, and voila, neat-o interior rivets. ( i got them at my job, ACE hardware). PM me if you want to see some pics of the stuff and what sizes and what it looks like in my car, or just ask me on this thread.