The thread shape of self-drilling screws is usually deep and sharp, which can generate greater cutting force during rotation and help the screws penetrate the material smoothly. Compared with traditional screws, self-drilling screws have a smaller thread pitch, which enables them to better cut and squeeze the surrounding material when entering the material. This feature is particularly prominent in hard materials, which can effectively reduce the tearing and deformation of the material and improve the overall strength of the connection.
The design of the drill bit is another important feature of self-drilling screws. The drill bit of self-drilling screws is usually conical or sharp, which can quickly cut into the material when the screw starts to rotate. This design not only improves the efficiency of drilling, but also reduces the impact force on the material during the initial entry stage, thereby reducing the potential damage to the surrounding structure. Especially in the automotive manufacturing and construction industries, material integrity is crucial, and the design of self-drilling screws significantly reduces the risk of potential cracks and defects.
The material selection of self-drilling screws is also a key factor in their optimized performance. These screws are usually made of high-strength steel or alloy materials with good tensile strength and corrosion resistance. These characteristics ensure the long-term stability of self-drilling screws in harsh environments and reduce the frequency of maintenance and replacement. Appropriate surface treatment technology, such as galvanizing or coating, further improves its durability and adaptability, ensuring good performance under various conditions.