Hex Flang Nuts (DIN 6923) Haiyan County Fuxin High Strength Fastener Factory Base Info Model NO.:DIN 6923Material:Carbon SteelType:Hexagon Head With FlangeConnection:Common BoltHead Style:HexagonalStandard:DINGrade:Class 6,8,10 Description Pre:Hex Coupling Nuts (DIN 6334) Next:Retaining Rings (CIRCLIPS)