Fastener Processes
Fastener Processes
Fastener processes are events following electroplating or coating, most electroplated finishes are followed by a chromate passivation coating that can serve two purposes. The first is to enhance the protection of the electroplating, the second is to change the visual appearance by adding a colour or making the finish look aesthetically brighter.
Hot Dip Spun Galvanised fastener products have tight threads after galvanising and need the matting nuts undercut by re-tapping in order to fit the bolts.
Chromate Passivation
Coatings additional corrosion seal and colour, click for more detail
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Retap Nut Threads
Heavey coating requires threads to be chased or retapped, click for more detail
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Dangers of electroplating fasteners higher than class 8.8, click for more detail
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Link to electroplate coatings
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