300pcs M3 Stainless Steel Nuts and Bolts Assortment Button Head Hex Socket Screws Kit with Storage Box

304 stainless steel--These screws assortment kit are made of 304 stainless steel material, with high strength and good corrosion resistance, for long time use. Fasteners repair tool--Environment-friendly, no pollution, high hardness fixing component, industrial and construction fasteners. Storage box--Well packed and assorted in a transparent plastic box for convenient use and storage. Multi screws size--There are six M3 common sizes for general purpose use, meet daily basic needs. Widely application--Widely used in the home and office appliance, communication equipments, ship assembly and other machinery industry.