M2 stainless steel torx drive black PVD precision screw

Industry knowledge：

Which is better, zinc plated or nickel plated screws?

1、 From the definition, zinc coating refers to the surface treatment of plating a layer of zinc on the surface of metal, alloy or other materials to play the role of beauty and rust prevention; Nickel plating is a method of plating a layer of nickel on metal or some non-metal by electrolytic or chemical methods, which is called nickel plating
2、 In terms of appearance characteristics, the zinc coating looks blue and white, with general corrosion protection; Nickel plating is silvery white and beautiful. It can be used as decoration. The price is high and the process is slightly complex
3、 In terms of application, zinc coating is used in screws, industrial supplies, etc; Nickel plating is applied to incandescent lamp caps, etc
4、 In terms of function, the zinc coating is not easy to react in dry air, so a dense zinc carbonate film can be formed on the surface in humid air, which can protect the surface from corrosion; Nickel plating is usually used in printing industry to improve the hardness of lead surface
5、 In a word, the key to which kind of zinc coated screw or nickel plated screw is to be used in what scene. We should choose the appropriate electroplating process according to the purpose of the product. Whether it is zinc coated or nickel plated, we can customize it according to your requirements.