... by hot-forging.2) Different finish, such as bright, zinc plated, yellow zinc plated3) Can be made as low carbon steel ... -M Grade4,5,6,8,9,10FinishBlack, Zinc Plated, Galvanized, HDG, Nickel Plated, Chrome PlatedDelivery timeUsually within 25-30 days after we have ... pallets or as your requirement.Productivity600 tons per years zinc plated hex