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Washer for bolts

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Washer for bolts

DIN 1440 galvanised steel, thick-film passivated with sealing (ZSM)

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Connection elements with galvanised chromium (VI)-free thick-film passivation (ZSM) offer a future-proof alternative to surfaces containing chromium (VI). The coating consists of a zinc layer with passivation on a chromium (III) basis with sealing. Washers with ZSM coating can be paired with ZSML as well as VZD-coated threaded parts.



Overview of advantages:



  • Chromium (VI)-free alternative to A2C or A3C

  • Thermal capacity up to 120°C

  • Even coat distribution

  • Functional and decorative