DIN 933/ DIN 934 Hex Head Bolt Fasteners Dacromet Coating

Gr.10.9 Hex Head Bolt Full Thread Dacromet Coating / DIN 933 Fasteners 

Hexagon bolt: A type of fastener consisting of a head and a screw (a cylinder with an external thread), which needs to be matched with a nut to fasten and connect two parts with through holes.

Dacromet, "green electroplating". is a new type of anti-corrosion coating with zinc powder, aluminum powder, chromic acid and deionized water as the main components. Its advantages are as follows:

1. Superior corrosion resistance: The thickness of the Dacromet film layer is only 4-8μm, but its anti-rust effect is more than 7-10 times that of traditional electro-galvanizing, hot-dip galvanizing or paint coating methods. 
2. No hydrogen embrittlement;
3. High heat resistance;
4. Good adhesion and recoating performance;
5. Good permeability;
6. No pollution and public nuisance.

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