_x000D_ These screws and nuts are made of 304 stainless steel, which is resistant to rust and corrosion.There are many sizes in one 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_ Environment-friendly, no pollution, high hardness fixing component, industrial and construction fasteners. _x000D_ Six common sizes for general purpose use, meet daily basic needs. _x000D_ Well packed and assorted in a transparent plastic box for convenient use and storage._x000D_ _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_ _x000D_ Size and Quantity: _x000D_ Screws:_x000D_ _x000D_ M3 x 6mm 50pcs _x000D_ M3 x 8mm 50pcs _x000D_ M3 x 10mm 50pcs_x000D_ M3 x 12mm 50pcs _x000D_ M3 x 16mm 50pcs _x000D_ M3 x 20mm 50pcs_x000D_ _x000D_ Nuts 300pcs _x000D_ Box Size: 12.5 x 6.3 x 2.3cm / 4.92 x 2.48 x 0.9" _x000D_ Weight: 330g(approx.)_x000D_ _x000D_ _x000D_ Package Includes:_x000D_ 300pcs x Screws _x000D_ 300pcs x Nuts _x000D_ _x000D_ _x000D_ Note:_x000D_ 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.