Hot dip galvanized hex bolt is the production process of hexagonal bolt is not the same as the ordinary, mainly through the form of hot dip galvanized. Is in fact the so-called hot galvanizing, the molten metal and iron substrate reaction and produce alloy layer, so that the combination of substrate and coating both, he is the first steel parts for pickling, in order to remove iron oxide on the surface of the steel parts, after pickling, by ammonium chloride or zinc chloride or ammonium chloride and zinc chloride mixed aqueous solution tank cleaning, and then sent to the hot dip plating tank.

Hot dip galvanized hex bolt has the advantages of uniform coating, strong adhesion and long service life.

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