These nuts and bolts sets are ideal for use in confined areas where the head needs to be flush or below the surface.Description480pc M2 M3 M4 Hex Socket Screws Set Stainless Steel Screws and Nuts Repair ToolSpecificationsModel:885730Type:hex socket button headStandard:metricMaterial:304 stainless steelColor:silverFeatures-Strong anti-oxidation ability,corrosion resistance.-These screws and nuts will be great replacement for industrial and construction fasteners.-Ideal for use as fixing component,industrial and construction fasteners where you need hex socket button head screws.-Can be used in home and office appliance,machinery,furniture,repair,inventions and other projects.Package included20pcs*M2 X 2020pcs*M2 X 1620pcs*M2 X 1220pcs*M2 X 880pcs*M2 Nuts20pcs*M3 X 2020pcs*M3 X 1620pcs*M3 X 1220pcs*M3 X 880pcs*M3 Nuts20pcs*M4 X 2020pcs*M4 X 1620pcs*M4 X 1220pcs*M4 X 880pcs*M4 NutsCompact thread is not easy to out of shape and slid in the process of rolling,easy to use,install,and easy carry.