i used like a 1\2 to 3\4 long by 1\8-3\16 Christmas tree push pins i had laying around the house ... sorry haven't gotten pics up truck is the wife's DD and she gets home after dark daily
also when i used these push pins they were a bit bigger then the sent plastic rivets so i had to gentle tap them into the holes in the hood with a rubber mallet just until they would hold the shield