Aerospace Series Screws, Normal Hexagonal Head, Threaded to Head, in Heat and Corrosion Resisting Steel, Passivated Classification: 900 MPa (at Ambient Temperature)/650 Degrees C Edition P 1
This standard specifies the characteristics of screws, normal ~ e x a ~ o nhaela d, ~hreadedt o head, in heat
and o f o s I roensi stin steel, passivated