What's the difference between self-tapping screws and regular screws?

Self-tapping screws have a built-in pointed head and coarse threads, eliminating the need for pre-drilling holes in the material. They can be screwed into the material using a power tool for fixing and securing. They are mainly used for connecting thin plates, purlins, and wall beams. Often exposed outdoors, they have good corrosion resistance. Self-tapping screws should be stored in a dry place to avoid moisture affecting their use. When handling them, be gentle; excessive shaking can affect the friction of the fasteners and cause unnecessary damage. Therefore, when purchasing self-tapping screws, it's best to choose a reputable screw manufacturer to avoid hidden quality issues.

 

What are the differences between self-tapping screws and regular screws?

1. Different properties. Self-tapping screws have a drill bit on the head, allowing for easy drilling and fixing using a power tool. Regular screws, on the other hand, have flat heads and are not irregularly shaped, requiring manual screwing with a regular screwdriver.

 

2. Different characteristics. Self-tapping screws can be installed on items because their built-in threads create a consistent thread pattern, resulting in a better fit and a tighter connection, preventing loosening. Ordinary screws, on the other hand, have flat heads and are generally of similar thickness; they require pre-drilling to achieve a secure hold.

 

3. their uses differ. Self-tapping screws are primarily used on non-metallic materials, or even softer metals, as they can be screwed in without pre-drilling or tapping. Ordinary screws, however, require pre-drilling and are mainly used on metals or harder materials.