Item name Titanium screw/bolt/fastener Standard ASTM B348,ASTM F67, ASTMF136,ASTMF1295,AMS4928,MIL-T-9047G ... -9047GSizeM3~22XCustom lengthColourGold, Blue, Purple, Green, Ti natualStrength class8.8/10.9/12.9Surface TreatmentPolishing, Anodizing, Black oxideFeatureslight weight, acid and alkali ...