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 and projects 4Total 180 pieces screws and 100 pieces locknuts 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 304 stainless 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 and projects. _x000D_Total 180 pieces screws and 100 pieces locknuts 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: Hex socket button head _x000D_Thread: M3_x000D__x000D_Screw Length: 5mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm _x000D_Screw Quantity: 20pcs each length_x000D__x000D_Box Size: 13 x 6.5 x 3cm / 5.11 x 2.55 x 1.18" _x000D__x000D__x000D_Package Includes:_x000D_180pcs x Screws _x000D_100pcs x Locknuts