Description: This set of screws are made from 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. Features: Made from 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments. Environment-friendly, no pollution, high hardness fixing component, industrial and construction fasteners. Six common sizes for general purpose use would meet your daily basic needs. Well packed and assorted in a transparent plastic box for convenient use and storage. Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry. Specifications: Material: 304 stainless steel Type: Pan head hex socket Size and Quantity: M2.5*4mm 30pcs M2.5*6mm 30pcs M2.5*8mm 30pcs M2.5*10mm 30pcs M2.5*12mm 30pcs M2.5*16mm 30pcs Box Size: 13 x 6.5 x 2.3cm / 5.11 x 2.56 x 0.9" Package Includes: 180pcs x Screws Package List 1Made from 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments 2Environment-friendly, no pollution, high hardness fixing component, industrial and construction fasteners 3Six common sizes for general purpose use would meet your daily basic needs 4Well packed and assorted in a transparent plastic box for convenient use and storage 5Used widely in the home and office appliance, communication equipment, ship assembly and other machinery industry