... Bolt sizes:M3-M20*Length 2.Material:Gr2,Gr5,Gr7,Gr23 3.Standard:DIN,ASTM,GB,BSW,UNC,JIS titanium screw for industry1.Titanium ... 6921,ISO 7380,JIS,BS etcSizeM3~22XCustom lengthColourGold, Blue, Purple, Green, Ti natualStrength class 8.8/10.9/12.9ApplicationsRacing industry ... /6921,ISO7380 etc.SizeM2~30X Custom lengthColourGold, Blue, Purple, Green, Ti natual…Strength class 8.8/10.9/12.9ApplicationsRacing ...