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
50sets Gunmetal Black Leather Rivet Metal Flat Head Rivet - Etsy
1/4"-20 Marson MRN Flat Head Rivet Nut, Steel, 0.020" - 0.080" Grip, 50-pack | K.L. Jack
Countersunk Head Rivets | DIN 661, ISO 1051 Standards | ITA Fasteners