1/8" Dia. X 1/2" Length Aluminum Flat Head Solid Rivet, Plain Finish (Pack of 1/2lb - Approximately 550 Pieces): Amazon.com: Industrial & Scientific
Caterpillar Flat Head Rivet (7b5062) Aftermarket - Walmart.com
Countersunk Head Rivets | DIN 661, ISO 1051 Standards | ITA Fasteners
AN442D8 Flat Head Rivets Sold by the Pound
1/4 Dia X 3/8 Length Steel Solid, Flat Head Rivet, ZINC Finish, (Pack of 1 LB - Approximately 102 Pieces) (410806TCZ): Amazon.com: Industrial & Scientific