The tail of the drill tail nail is mostly in the shape of a drill tail or a sharp tail, which quickly occupies the market due to its simple use and easy operation.  The drill tail nail can be used for drilling holes on various basic materials to realize quick splicing and assembly, has strong adhesive force, is not easy to loosen and fall off, is very simple and convenient to use, and has high safety factor.  In construction and decoration projects, various materials can be tightly combined, resulting in less cost and higher reliability. It is the most economical metal fastener.  The general materials of drill tail nails are divided into iron and stainless steel, with dozens of varieties and four basic specifications, namely: φ 5.5× 20 mm-φ 5.5× 135 mm φ 6.3× 25 mm-φ 6.3× 300 mm.  Widely applicable to various fields and materials.  The following points are the product features of the drill tail nail: 1. It has good toughness: SUS410 with low carbon content is adopted and heat treatment technology is adopted to avoid fracture caused by hard inside of the drill tail nail.  2. Corrosion resistance 3. Bright and beautiful appearance: The surface of the drill tail nail is silvery white, and the head is as bright as a mirror.  4. High Strength: After heat treatment, the surface hardness of the drill tail nail can reach above HV580-HV750, thus completing the fastening process of self-drilling and self-tapping teeth more quickly and at one time.  Greatly save time and improve work efficiency.  5. Good quality and low price