This standard specifies the characteristics of double hexagon headed bolts with relieved shank and longthread, in NI-P100HT, silver plated, for aerospace applications.
EN 2928:1996 history
1996EN 2928:1996 Aerospace series - Bolts, double hexagon head, relieved shank, long thread, in heat resisting nickel base alloy NI-P100HT (Inconel 718), silver plated - Classification: 1275 MPa (at ambient temperature)/650 °C