This standard specifies the characteristics of solid rivets, with 100° countersunk normal head, in titanium TI-PO2, anodized, inch based series, for maximum operating temperature 315°C.
DS/EN 3643:1997 history
1997DS/EN 3643:1997 Aerospace series - Rivets, solid, 100° countersunk normal head, in titanium TI-PO2, anodized, inch based series