Product Name: Hex Head Flange Bolt with Serration DIN6921 Zinc Plated Black Grade 4.86.88.810.912.9 Uncunf Model NO.: DIN6921 DIN6923 Finish: Color-Zinc Plated Application: Machinery, Chemical Industry, Environmental, Building, Oil & Gas, Automotive Industry Grade: 10.9 Standard: DIN, ANSI, GB, BSW Head Style: Hexagonal Connection: Common Bolt Type: Hexagon Head Material: Carbon Steel Available Material: Stainless Steel / Carbon Steel / Alloy Steel DIN Class/Grade: Metric DIN Ma/MB4.8, 8.8, 10.9 SAE Class/Grade: SAE Unc/Unf 2,5,8 Poducts Type: DIN6921 Surface Finishing: Plain Finish,Black,Hot DIP Galvanized(HDG), Zinc Thread: Metric Coarse / Fine Thread Go Gauge and No Gauge: Ok Used(Application): Heavy Industry,Building Industry,Machinery, Chemic Samples: Available, You Need to Pay Freight. MOQ: 1 Pallet (Around 900kgs) Mark: G4.8,G8.8,G10.9 or Customizable Cereticifit: ISO9001 Trademark: customizable or G4.8 G8.8 G10.9 Transport Package: Small Box, Bulk Packing, in Carton, 36 Cartons Per Specification: M5-M24: Cold