Mild Steel Snap Head Rivet For Screw Coupling Size Item -1 Length 81 Mm* Dia 7.5Mm* Head 13 Mm* Head Thickness 5 Mm Item -2 Length 80Mm * Dia 5.9 Mm *Head 10Mm * He Ad Thickness 4 Mm Is:1148/2009, Rev-4 [ Warranty Period: 30 Months After The Date Of Delivery ] ]