where can i get rosette rivet for VIN Plate

[lost_66]

i work on 76 chevy 3/4 ton remove old cab has rust out but vin plate is gone from side from rocker so i got other vin plate match from my other junk 76 chevy 3/4 ton to put on my rustfree cab
but need to find special rivet for vin plate to match... called
"rosette rivet " design hex/octagonal head style look like 6 point on top head for 60's to new on america vechile. if you know anyone or where i could get rosette rivet to put vin plate back
on new cab. ..