Hex Flange Head Bolt (DIN6921) Kunshan Yea-Ok Hardware Products Co., Ltd. Base Info Model NO.:DIN6921Material:Carbon Steel, Ss, Alloy SteelType:Hexagon HeadConnection:Common BoltHead Style:HexagonalGrade:4.8, 8.8, 10.9, 12.9, Ss Description Pre:Plow Bolts Next:Parts for Pneumatic Tool