Product DescriptionPackage Content 450 Packs of Stainless Steel Pan Head Self Tapping Screws1.WIDE APPLICATION Self-tapping screws are generally used to join thin steel plates, such as door handles, and can also be used for daily minor repairs.2.CARBON STEEL MATERIAL Our self-tapping screws are made of excellent quality carbon steel. It exhibits high strength, corrosion resistance and rust resistance in most environments.3.EASY TO CARRY AND USE Each set of self-tapping screws comes with a white plastic box. All screws are sized according to size, and packaged in a plastic box, easy to carry and use.4.NOT EASY TO SLIP Round head self-tapping screws are deep and the force is uniform. The screw is sharp and can easily pass through film, plastic or wood and is not easy to slip off. Its high hardness and not easy to deform.5.9 TYPES OF SPECIFICATIONS There are 9 kinds of specifications for black cross self-tapping screws --- M3 * 5, M3 * 6, M3 * 7, M3 * 8, M3 * 10, M3 * 12, M3 * 14, M3 * 16, M3 * 18, 50 by specification. These can meet your basic needs. (zhongchengdaye)