1、Made of 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments 2、Ideal for use in confined areas where you need hex socket cap head screws 3、Fixing component, industrial and construction fasteners 4、Eleven common sizes and different quantities that you can choose for general purpose use 5、Used widely in the home and office appliance, communication equipments, ship assembly and other machinery industry Description: These screws and nuts are made of 304 stainless steel, which is resistant to rust and corrosion.There are many length for your choice which can be commonly used in home and office appliance, machinery, furniture, repair and DIY inventions. Features: Made of 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments. Ideal for use in confined areas where you need hex socket cap head screws. Fixing component, industrial and construction fasteners. Eleven common sizes and different quantities that you can choose for general purpose use. Used widely in the home and office appliance, communication equipments, ship assembly and other machinery industry. Specifications: Material: 304 stainless steel Color: Silver Type: Hex socket cap head Size:(optional) M2*3mm M2*4mm M2*5mm M2*6mm M2*8mm M2*10mm M2*12mm M2*14mm M2*16mm M2*18mm M2*20mm Quantity: 24pcs, 50pcs, 100pcs(optional) Unit: mm d screw pitch  P b dk k s t max min max min max min min M2 0.4 16 3.98 3.62 2 1.86 1.56 1.52 1 M3 0.5 18 5.68 5.32 3 2.86 2.58 2.52 1.3 M4 0.7 20 7.22 6.78 4 3.82 3.08 3.02 2 M5 0.8 22 8.72 8.28 5 4.82 4.095 4.02 2.5 M6 1 24 10.22 9.78 6 5.7 5.14 5.02 3 M8 1.25/1 28 13.27 12.73 8 7.64 6.14 6.02 4 M10 1.5/1.25/1 32 16.27 15.73 10 9.64 8.175 8.025 5 M12 1.75/1.5/1.25 36 18.27 17.73 12 11.57 10.18 10.025 6 M14 2/1.5 40 21.33 20.67 14 12.57 12.21 12.032 7 M16 2/1.5 44 24.33 23.67 16 15.57 14.21 14.032 8 M18 2.5/2/1.5 48 27.33 26.67 18 17.57 14.21 14.032 9 M20 2.5/2/1.5 52 30.33 19.67 20 19.48 17.23 17.05 10 Package Includes: 1 Set x Screws Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 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.