Product Name: Extend The Outer Hexagon Bolt Finish: Black Application: Machinery, Building Grade: 4.8 Standard: DIN, ANSI, GB Head Style: Hexagonal Connection: Common Bolt Type: Hexagon Head Material: Carbon Steel Transport Package: Woven Bag/Carton Specification: m8x20-300 Origin: China Handan HS Code: 7318150000 Product Description Materials:Carbonsteel,Alloysteel,Stainlesssteel,PlasticandCopper.Surfacetreatment:Plain,Black,ZincPlated(ZP),YellowZincPlated(YZP)andHotDIPGalvanizing(H.D.G.),Dacromet,NickelPlated,BrassPlated.Grades:4.8,5.8,8.8,10.9,12.9,2,5,8,A307,A325.Standards:DIN,BSW,JIS,ASMEandANSI,Non-standard,CustomDrawing.Thread:MetricCoarse,MetricFine,UNC,UNF,BSW,BSF.Sizes:M3X5-M100x1000,1/8X1/4-to4X40inches.Packing:Smallbox/Carton,CartonsBulk/Pallet,GunnyBag.