How to effectively deal with the problem of anti-loosening of combination screws and hex screws?

Combination screws and hex screws are a common mechanical connection element used to secure and connect various devices and structures. In order to prevent loosening, the following treatment methods can be taken: Use of locking agent: When assembling screws, appropriate locking agent can be applied to the thread part. The locking agent has the characteristics of increasing the thread friction and damping effect, which can effectively prevent the screw from loosening. Use elastic washers: Add elastic washers between the screw and the hole to provide additional fastening force and absorb shock and vibration during vibration or stress to prevent the screw from coming loose. Application locking nut: The locking nut is a specially designed nut with locking function. They usually have a locking structure with elastic washers or inserts that increase the friction of the screws and prevent them from coming loose. Use preload: When tightening screws, applying the appropriate preload can increase the tightness of the thread contact surface, improve the fastening force, and reduce the possibility of loosening. Regular inspection and maintenance: Regular inspection and maintenance of the connecting parts to ensure that the screw fastening force is normal, timely detection and handling of loosening problems. Please note that the choice of treatment method should be determined according to the specific application and needs, and the above methods can be used alone or in combination to prevent the occurrence of screw loosening.