Standard blind rivets with countersunk head in aluminium - FAR
Pop AK56BS Open End Rivets ; Blind Rivets; 5/32 Inch Dia. (.156); (.251-.375 Grip); 120 Deg Countersunk Head; Aluminum Body; Steel Mandrel; Plain Finish. - Pop Open End Rivets from Bay Supply
Amazon.com: 30/50pcs Aluminium Countersunk Head Black Blind Rivets Standard Type 2.4mm 3.0mm 3.2mm 4.0mm (Size : 30Pcs, Color : 4.0x10 mm) : Industrial & Scientific