1. It has been corroded and the hardness is not enough, which will cause the thread of the self-tapping screw to not work, so it is necessary to replace the new self-tapping screw;
2. Self-tapping screws are caused by the combination of tension and torsion deformation, especially when the torsion deformation will be broken during the threaded connection, so the shear strength of the material is much smaller than the tensile strength;
3. Insufficient separation from the base metal and poor adhesion will cause the thread to not work, so you need to pay attention to check whether the connection is correct.
Although self-tapping screws are small, they are widely used, so that all equipment assembly and installation are indispensable. Therefore, self-tapping screws manufacturers kindly remind that if you want to use self-tapping screws, you must choose good quality screws to ensure that they can work properly. product. Self-tapping screws are widely used in color steel plate, light steel structure engineering, steel and aluminum doors and windows, advertising industry, refrigeration and air conditioning, home appliance manufacturing, enamel steel plate, wooden house furniture, aluminum curtain wall, decoration and decoration, etc.
