Magotan air filter element has a screw that can't be tightened tightly. Why?

There are four reasons why a screw of Magotan air filter element is not tight: the old thread is damaged, the thread is not well matched with the screw, the screw is too loose or too tight, and the screw itself has problems.

1, old thread damage: due to repeated use or other reasons, the thread may have been worn or damaged, which will make the screw unable to tighten.

2. Thread and screw mismatch: Sometimes, different kinds of screws and threads are incompatible, which may cause the screws to be loose or not installed at the correct depth.

3. The screw is too loose or too tight: If the screw is too tight or too tight, it may become loose or fall off during use.

4. There is something wrong with the screw itself: sometimes there may be problems on the surface of the screw, such as cracks or depressions, which may also lead to the screw not being tightened.