Countersunk carbon steel cross drive black zinc plating screw

Industry knowledge：

What Are Advantages Of Screws?

Screws help to hold things together, such as pieces of wood or metal. Compared to ordinary nails, screws provide more strength and holding power. They also form a tighter seal. Plus, unlike nails, they can also be removed fairly easily.

Their hold is longer-lasting and stronger. 

And since screws are so strong, there is less of a worry about the durability and hold. So it gives the material more of a piece of mind when done. Since screws offer a strong and tight bond with their adjoining material, this makes them less susceptible to rusting.