1>Certificate:ISO:9001:2008 2>Grade:Gr1,Gr2,Gr3,Gr4,Gr5(Ti-6AL-4V),Gr7, ... , IFI,UNC,UNC, 1>Certificate:ISO 9001:20082>Dimensions: M2-24 or according to your requirements3>Standard:DIN912,DIN931,DIN934,DIN7991,DIN9654>Washer ... ,car,especially racing bicycle,racing car,racing motorcycle. Titanium Screw for bicycle