Titanium torx screws in DIN7991 socket countersunk head cap screws ( some changes on the head part as customer demand),  M3 screws ,such as M3*16  ,M3*20  . M4 screws ,such as M4*40 ,M4*20  ,or titanium race flange screws M10*180  will go mach with titanium lugs nuts and washers

Titanium Gr5 fasteners used in motorcycle and bicycle fixing system or titanium mtb bike frame parts