Features:Flat head pass self-tapping screw with self-drilling, self-locking, easy installation, compatible for quite a lot of materials, dependable connection, corrosion resistance, a wide range of makes use of and other characteristics, is domestic decoration, woodworking, machinery manufacturing and other fields commonly used fixing components.Self-tapping design: The threaded screw head is designed with a sharp drilling tail, which might drill holes in the material via itself, without pre-drilling, and is simple to install.Flat head design: The screw head is flat head design, straight forward appearance, appropriate for ornamental initiatives that desire a flat surface.Cross slot drive: The screw head is designed with a go slot, which is easy to tighten with a screwdriver or wrench, offering better operability.Various specifications: Provide a variety of specs and sizes of screws to fulfill the fixed needs of different thicknesses and materials.Surface treatment: The floor is handled with black oxidation, which will increase the corrosion resistance of the screwsWide application: Flat head pass self-tapping screws are suitable for solving and connecting wood, metal, plastic and other materials, and feature a variety of applications.Specifications:Material: Carbon steel Models: M3x12/16/20mmM3.5x10/12/16/20/25mmPackage includes: eight sizes,fourscore piecesPlease note:1. Please enable small dimension error. Because it contains small parts, hold far from teens under three years old.2. If you're convinced with our products and services, please depart five-star feedback, we are able to admire it.3. If the goods you get hold of are damaged or have other problems, please be at liberty to touch us.4. Please allow the quantity of small applications to be wrong. The photo is barely enlarged in your convenience, be sure to eavesdrop on the particular size, as it could also be smaller than the representative picture