Hello! Most of the part suppliers offer screw rivets (Brattons#18280). Mostly used for the headlights. I think they would look good in areas where I don't have the abililty to get to some of the body rivets in with actual rivets. They would look better than bolts I think. Does anyone know if I can get larger ones? I have looked on the Internet and called just about every local nut and bolt supplier and none of them have ever seem them. Obviously someone makes them. Carriage and step bolts won't work unless you file out every hole for the square shoulder. Any advice? Thanks!