1Made of 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments 2Environment-friendly, no pollution, high hardness fixing component, industrial and construction fasteners 3Nine common sizes for general purpose use, meet daily basic needs 4Well packed and assorted in a transparent plastic box for convenient use and storage 5Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry