... ,balck,HDG Package:bulk and box 1) Different kinds of nuts available ,M3 to M30 to be mae by cold forming ... by hot-forging.2) Different finish, such as bright, zinc plated, yellow zinc plated3) Can be made as low carbon steel and high ... , specialSizeM -M Grade4,5,6,8,9,10FinishBlack, Zinc Plated, Galvanized, HDG, Nickel Plated, Chrome PlatedDelivery timeUsually within 25-30 days after we ...