I don\u2019t know if there are no non-standard screws. How many industries and companies are facing the threat of bankruptcy, it can be said that the existence of non-standard screws has a large impact. The role of non-standard screws does not seem to be great, but its penetration in industry and life is very strong. Whether in life or in industry, the value of non-standard screws is worth investing in and worth many people. Go to research and development. The process flow of non-standard screws is mainly: The first step: Panyuan, that is, the process of preparing raw materials by the steel mill, the Senke Screw Factory mainly uses the materials produced by Baosteel in China, and the quality of large state-owned enterprises is guaranteed. Step 2: Annealing to facilitate cold forging processing The second step: pickling, surface treatment The fourth step: draw the thread and process it according to the size of the non-standard screw, the accuracy can reach 0.01mm Step 5: Heading\/rubbing teeth, and secondary processing The sixth step: heat treatment to change the mechanical properties of the Chipboard Screws. Step Seven: Electroplating The quality of non-standard screws is actually the small details in the design\/production. If you want to ensure the quality of non-standard screws, you can start from the following aspects. The purchase of raw materials must ensure that the quality of the production of large enterprises is guaranteed. Many illegal businesses use recycled materials to shoddy, which is quite important. Pay attention to the temperature during annealing. If the temperature is too high, it is easy to directly deform the screws and so on.When rubbing the teeth, aim at the mouth of the tooth, it is difficult to tighten the mouth after the deflection.Pay attention to the cleaning concentration when pickling, otherwise it will easily affect the effect of pickling.