标准号:NFL24-137-1997
英文标准名称:Aerospaceseries.Screws,100degreescountersunknormalhead,offsetcruciformrecess,closetolerancenormalshank,shortthread,intitanium,anodized,MoS2lubricated.Classification:1100MPa(atambienttemperature)/315degreescelsius.
国际标准分类号:49.030.20