Stainless Steel Chipboard Screws Manufacturers

What are the process requirements for the pre-drill-free feature on the thread accuracy and surface roughness of the screw? ​

Stainless steel chipboard screws can achieve pre-drill-free installation, and its core lies in the unique thread design. When ordinary screws are screwed into the board, the friction between the thread and the material is often too large, which easily causes the board to crack, so pre-drilling is required to reduce resistance. The particleboard screw has a special thread shape and parameter design, which gives it a strong cutting force and can directly cut the board fiber during the screwing process, reducing the dependence on pre-drilling. Relying on its rich experience in the field of general parts manufacturing, Zhongke Metal Technology has conducted in-depth research and optimization on screw threads, ensuring the realization of the pre-drill-free function from the source. ​
Thread accuracy is one of the key factors affecting the pre-drill-free performance of particleboard screws. Accurate thread parameter design can not only ensure that the screws are screwed into the board smoothly, but also ensure the tightening effect. The parameters of the thread profile, pitch, lead, etc. need to be precisely calculated and repeatedly tested. In the process of screw production, Zhongke Metal Technology uses advanced equipment imported from Taiwan and combines self-developed design solutions to perform high-precision processing on the thread. Taking the tooth profile as an example, the special tooth profile structure developed by the company can enhance the cutting ability of the board fiber while ensuring the strength of the thread, making the screw smoother when screwed in, reducing the problems of stuck and slipping caused by insufficient thread precision, thereby reducing the risk of board damage. ​
In addition to the tooth profile, the precise control of pitch and lead is equally important. Reasonable pitch design can control the speed and depth of screwing in while ensuring the cutting force, avoiding damage to the board surface or too deep screwing in, which affects the integrity of the back of the board. Zhongke Metal Technology uses a high-precision cold heading process to ensure that the pitch and lead of each screw meet the design standards, thereby ensuring the applicability and stability of the screw on different boards. ​
Surface roughness also has an important influence on the pre-drilling-free characteristics of particleboard screws. A surface that is too rough will increase the friction between the screw and the board, making it difficult to screw in, and may even tear the board fiber; while a surface that is too smooth may reduce the bite ability of the thread and the board, affecting the fastening effect. Therefore, the surface roughness of the screw needs to be controlled within a reasonable range. Zhongke Metal Technology uses advanced process technology to finely grind and polish the surface of the screws in the surface treatment process to achieve the best surface roughness. At the same time, in order to enhance the corrosion resistance and service life of the screws, the company will also carry out environmentally friendly surface treatment on the screws, such as galvanizing and blackening. These treatments will not only not affect the impact of surface roughness on the pre-drilling-free performance, but also further improve the overall performance of the screws. ​
During the production process, we have established a strict quality control system to ensure that each batch of products can meet the requirements of pre-drilling-free characteristics for thread accuracy and surface roughness. The company conducts speed tests on each batch of high-strength products. By simulating actual usage scenarios, the screw-in speed, torque change and other indicators of the screws are detected to determine whether the thread accuracy meets the standards. Torque tests are also carried out to ensure the reliability and safety of the screws at different tightening levels and avoid failures caused by abnormal torque. Through these rigorous testing processes, the accuracy and stability of the products are guaranteed, which not only reduces the customer's use cost, but also improves the construction efficiency. ​
Zhongke Metal Technology's deep accumulation in metal material heat treatment technology also provides strong support for the performance improvement of particleboard screws. By performing reasonable heat treatment on the screw material, its internal structure can be optimized, and its hardness and toughness can be improved, so that the screw will not easily deform or break while having strong cutting force, further ensuring the reliability and stability of the pre-drilling-free function.