DIN933 Hexagon Head Bolt Material:Middle Carbon Steel,Stainless steel Surface:Plain,Black,Zinc Plated Size:M4-M42 DIN933 Hexagon Head BoltStandard: DIN, ANSI, JIS, BSMaterial:Middle Carbon Steel, Stainless steelSurface: Plain,Black,Zinc PlatedSize:M4-M42Length: According To The Customers' RequirementsPackage: Box, bulk In Carton; PalletCustomerized Package Is Accepted DIN933 Hexagon Head Bolt