ITEM NAME:500pcs/box Stainless Head Screws Nuts Assorted Kit Industrial Fasteners Description: Made of high-quality 304 stainless steel, strong corrosion resistance and acid resistance. Great for use in confined areas as fixing component, industrial and construction fasteners. Many different length of button head screws that you can use for various purposes. Total 180 pieces screws and 160 pieces nuts for generic purpose use will meet your daily basic needs. Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry. Specification: Material: 304 Stainless Steel Size Chart: Size: As Picture Show Package Includes: 500pcs/box Assorted Screws Nuts.500pcs/box Assorted Screws Nuts. Great for use in confined areas as fixing component, industrial and construction fasteners. Many different length of button head screws that you can use for various purposes.