Reliability of the special thread design of self-locking screws

Compared with traditional screws, self-locking screws use a more complex and sophisticated thread structure that can maintain tightening force under various dynamic loads. This design not only takes into account the geometry of the thread, but also incorporates the selection of materials and optimization of processing technology to ensure that the connection will not loosen under high-frequency vibration and impact.
The threads of self-locking screws usually have a larger thread angle and a steeper thread shape. This design increases the friction between the screw and the parent body. When the screw is tightened, the friction between the contact surfaces of the threads will be greater than the loosening tendency caused by any external forces, thereby ensuring the stability of the connection. This increase in friction is particularly important in high-dynamic load applications such as automotive and aviation, which are often accompanied by frequent vibration and impact.
Material selection is also an important factor in the reliability of self-locking screws. Self-locking screws are usually made of high-strength alloy steel or stainless steel, which have good fatigue and corrosion resistance. In harsh working environments, the strength and toughness of these materials can effectively resist the influence of external forces and prevent fatigue damage after long-term use. Many self-locking screws are also heat-treated or surface-treated to further improve their wear and corrosion resistance.
The design of self-locking screws also takes into account the convenience of installation. In many applications, the installation and removal process of screws has a direct impact on efficiency. Self-locking screws can achieve high-reliability connections through simple tightening operations without the need for additional locking measures, which is especially important for components that require frequent maintenance.