Zuudee BYD Titanium offer various kinds of titanium fasteners such as following standards: 

Hexagon head screws ( DIN931 )
Hexagon head screws ( DIN933 )
Hexagon socket cap screws ( DIN912 )
Slotted countersund head screws ( DIN963 )
Hexagon socket coutersunk head screws ( DIN7991 )
Slotted cheese head screws( DIN84 )
Hexagon socket set screws with cup point ( DIN916 )
Button head bolts ( ISO7380 ) 
 
Plain washers ( DIN125 )
Spring lock washers, square ends ( DIN127 )
Tab washers ( DIN93 )
Plain washers ( DIN126 )
Washers for cheese head screws ( DIN433 )
Square washers ( DIN436 )
Retaining rings for shafts(external), circlips ( DIN471)
Plain washers for clevis pins ( DIN1441 )
Round washers for friction grip bolts ( DIN6916 )
Spuare taper washers for friction grip bolts (DIN6917 )
 
Hexagon full nuts ( DIN934 )
Hexagon thin nuts ( DIN439 )
Hexagon nuts, with nylon ( DIN985 )
Pip nuts with thread ( DIN431 )
Slotted round nuts ( DIN546 )
Hexagon nuts ( DIN555 )
Hexagon slotted and castle nuts ( DIN935 )
Hexagon thin nuts ( DIN936 )
Hexagon thin slotted and caslte nuts ( DIN937 )
Hexagon thin slotted and castle nuts ( DIN979 )
Prevaillng rorque type hexagon nuts, all metal nuts ( DIN980 )
Round nuts with set holes ( DIN1816 )

Threaded bolts(DIN975,DIN976)