Rag Bolt Universal : Are made from mild steel or medium/high carbon steel, ... ,hex socket bolt.finish bright,zinc plated,hot-dip galvanized,mechanical plated ,nickel plated,blackgrades4.8,5.8,6.8,8 ... presence: ElectronicsHome & Industrial AppliancesIndustrial Tools and MachineriesAutomotiveMedical EquipmentsMilitaryTelecommunications Rag Bolt Universal