This International Standard specifies the characteristics of plain steel washers, small, normal and large series, of product grade A with hardness classes 200 HV and 300 HV for metric screw and washer assemblies according to ISO 10644.
ISO 10673:1998 history
2009ISO 10673:2009 Plain washers for screw and washer assemblies - Small, normal and large series - Product grade A
1998ISO 10673:1998 Plain washers for screw and washer assemblies - Small, normal and large series - Product grade A