Manufacturer′s Outer Hexagon Head Flange Bolt and Nut Hebei Chengyi Engineering Materials Co., Ltd. Material:Carbon SteelType:Hexagon HeadConnection:Common BoltHead Style:HexagonalStandard:DINGrade:8.8 Base Info Application:Machinery, Chemical Industry, Environmental, BuildingFinish:PolishingModel:DIN931 DIN933 DIN934Sample:ProvideOEM:OEM WelcomeODM:ODM WelcomeFeatures:Good Anti-Corrosion AbilityDrive Type:Hexgon HeadSurface Treatment:Black OxideTransport Package:Box , Bulk Packing , PalletSpecification:M4-M30Trademark:ChengyiOrigin:Hebei, ChinaHS Code:7318159090Production Capacity:600 Tons , Month Description Overview Product DescriptionDetailed PhotosCompany ProfileCertifications FAQ Pre:3/8 Unc Unf Black Bolt and Nut 8.8 Flange Bolt Next:Carbon Steel Black Oxide T Bolt T-Slot