... DIN931, DIN933, DIN985, DIN125, DIN127, DIN9021, DIN6926 Titanium nuts and bolts :Titanium materials is now becoming used in a wide range of ... : the first cylindrical titanium screw ,titanium head screw , hexagon titanium screw , pan head screw titanium ,titanium & semi—head screws, square head screw titanium , titanium screw slot word , titanium cross slot screw ,titanium screw—shaped plum .( we ...