we need Carbon Steel DIN6921 12 point flange boltFinish:Black OxideMaterial:SteelStandard:DIN, ISO, GBProduct name:Hot sales Carbon Steel DIN6921 12 point flange boltSize:M16x2.0x50 mmMaterial:Carbon SteelGrade:10.9/12.9Application:Connection, FasteningQuality Control:100% quality inspectedOEM Service:AvailableCertificate:ISO9001:2008, SGS Testing Report & RoHSKeyword:Flange Bolt 12 pointMOQ:400pcs Show More