Flat washer with large external diameter ISO 7093-1 steel 200 HV zinc plated thick-layer passivated with sealing (ZSM)
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Flat washer with large external diameter ISO 7093-1 steel 200 HV zinc plated thick-layer passivated with sealing (ZSM)
Fasteners with zinc plated chromium(VI)-free thick-layer passivation (ZSM) offer a future-proof alternative compared to surfaces containing chromium(VI)
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Variants
Exclusively for trade customers
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The coating consists of a zinc layer with passivation based on chromium(III) with sealing. Washers with ZSM coating can be paired with ZSML- as well as thick layer passivated 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
Select RAL-colour code
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