This standard specifies the characteris ics of solid rivets, with 100° normal countersunk head, inch series, made of aluminum, for use at temperatures up to 120°C.
ONORM EN 2550-1993 history
1993ONORM EN 2550-1993 Aerospace series — Rivets, solid, 100° normal countersunk head, in aluminium 1050A, inch based series