How are fasteners generally surface treated

Fasteners generally require surface treatment, and there are many types of surface treatments for fasteners, including electroplating, oxidation, phosphating, and non electrolytic zinc coating treatment. However, electroplated fasteners account for a large proportion in the actual use of fasteners. Especially widely used in industries and fields such as automobiles, tractors, household appliances, instrumentation, aerospace, and communications. However, for threaded fasteners, it is not only necessary to have a certain degree of anti-corrosion ability during use, but also to ensure the interchangeability of threads, which can also be referred to as screw fit. In order to meet the dual requirements of anti-corrosion and interchangeability in the use of threaded fasteners, it is necessary to develop specialized electroplating standards.

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