Self-tapping screws are a kind of fasteners that we often use in our daily life. Its main function is to nail into the material through its own function, so as to achieve the purpose of fixing. The choice of suitable self-tapping screws has an important impact on our use effect and long-term maintenance. Here is a look at the material of self-tapping screws and how to choose self-tapping screws. 1. Wood self-tapping screws Wooden self-tapping screws are made of relatively hard wood or bamboo and processed through milling. This kind of self-tapping screws are widely used in traditional furniture construction and other fields. However, because the specifications and sizes of wood self-tapping screws are not uniform, they need to be flexible according to needs. Wood self-tapping screws are mostly processed by woodworkers themselves and can not achieve mass production. In addition, the hardness of wood self-tapping screws is relatively low, and can only be used on wood and other materials that are softer than wood. 2, plastic self-tapping screws Plastic self-tapping screws have low cost and simple price, so they are widely used in some low-cost fields. On the other hand, because the plastic self-tapping screws have good corrosion resistance and do not rust, their life is also relatively long. However, the hardness of plastic self-tapping screws is not high, so it is difficult to use on some harder materials. 3. Metal self-tapping screws Metal self-tapping screws are the most used self-tapping screws on the market at present. The style has a good texture and is relatively high-end, so it is widely used in some high-end fields. Metal self-tapping screws have high hardness and can be nailed into harder objects. However, the cost price of metal self-tapping screws is also relatively high.
Second, how to choose self-tapping screws 1, material selection of self-tapping screws, should first determine which material is needed. At present, the commonly used materials of self-tapping screws include iron, copper, aluminum, alloys, etc., and relatively high-end titanium alloys, pure titanium and so on. The price of self-tapping screws of different materials varies greatly. At the time of selection, the relatively appropriate material should be selected according to the requirements of use. For example, if you need copper self-tapping screws, then it is not necessary to choose the self-tapping screws of titanium alloy. 2, brand brand is an important indicator of the quality of self-tapping screw products. The quality of self-tapping screws depends on the screw diameter series, the number of threads and the length of the screw. Relatively speaking, the screw with more threads has a stronger self-drilling ability. Therefore, some good brands of self-tapping screws, the quality will be relatively higher, the overall performance is more excellent, and the service life is more guaranteed. In short, when choosing self-tapping screws, the appropriate self-tapping screws should be selected according to the use requirements and the actual situation. Different materials and brands of self-tapping screws have different characteristics and advantages, should be selected according to their own needs.
