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Washer
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Washer

ISO 7090, steel 300 HV zinc-plated thick-film passivated with sealing (ZSM)

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Available in 9 versions

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Connection elements with zinc-plated chromium(VI)-free thick-film passivation (ZSM) offer a future-proof alternative compared 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 coating distribution

  • Functional and decorative