1Made of 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments 2Ideal for use in confined areas as fixing component, industrial and construction fasteners 3There are many different length of button head screws that you can use for various purposes 4Total 180 pieces screws and 160 pieces nuts for general purpose use will meet your daily basic needs 5Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industryDescription: _x000D_These screws are made of high quality alloy steel, which provides strength and offers good corrosion resistance in many environments. Button head design is ideal for use in confined areas as fixing component, industrial and construction fasteners. There are many length in this set which can be commonly used in home and office appliance, machinery, furniture, repair and inventions. _x000D__x000D__x000D_Features: _x000D_Made of 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments. _x000D_Ideal for use in confined areas as fixing component, industrial and construction fasteners. _x000D_There are many different length of button head screws that you can use for various purposes. _x000D_Total 180 pieces screws and 160 pieces nuts for general purpose use will meet your daily basic needs. _x000D_Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry. _x000D__x000D__x000D_Specifications: _x000D_Material: 304 stainless steel _x000D_Type: Button head hex socket _x000D_Size and Quantity: _x000D_Screws_x000D__x000D_M3 x 5mm 20pcs _x000D_M3 x 6mm 20pcs _x000D_M3 x 8mm 20pcs _x000D_M3 x 10mm 20pcs _x000D_M3 x 12mm 20pcs _x000D_M3 x 14mm 20pcs _x000D_M3 x 16mm 20pcs _x000D_M3 x 18mm 20pcs _x000D_M3 x 20mm 20pcs _x000D_M3 Nuts 160pcs _x000D__x000D__x000D_Package Includes:_x000D_180pcs x Screws _x000D_160pcs x Nuts