PREN 4297:1996被替代
Aerospace Series - Nuts, Hexagon, Self-Locking By Plastic Ring, Normal Height, Normal Across Flats, In Corrosion Resisting Steel, Passivated - Classification: 900 Mpa (At Ambient Temperature)/120 Degrees C
出版：Aerospace & Defence Industries Association of Europe
專家解讀視頻
