Product instruction：We mainly produce and sell standard high-quality fastener and custom non-standard special fastener according to customers’ requirements,Website:http://www.nbzhencheng.com, such as DIN,UNI,ANSI,BS,JIS,ISO, GB etc. The products are widely used in electron, machine, energy, chemicals, die, hydraulics, automobiles, etcProduct material: Carbon Steel, Alloy Steel, Stainless Steel, Copper, Nylon, Plastic, etc.Product intensity level: 4.8,6.8,8.8,10.9,12.9,4,6,8,10,A2-70,A4-80. m12 hexagon bolt din931/din933Product surface treatment: Zinc Clear, Zinc Yellow, Zinc Black, Tin-plating, Nickel-plating, Dacromet, Mechanical Galvanizing, Hot-dip Galvanizing, Dye Blackness, Phosphor Grey, Copper Yellow, etc.Place of Origin:Zhejiang, China (Mainland)Brand Name:ZCMaterial:20MnTiBFinish: blackSurface treatment:Heat TreatingType: HexagonColor: blackPacking:CartonItem:China FastenerApplication:BuildingPackaging Details:Small box, carton, pallet, nylon bag, for self drilling screwProduct Description1. Grade:10.9S2. Size: M16,M20,M22,M24,M27,M303. Length：50-250mm4. Standard: GB 5. Certification: ISO9001, CEProduct Name:BoltMaterial: 20MnTiBUsed:building industry machinery
