Washer ISO 7089 steel 200 HV zinc-plated thick-layer passivated with sealing (ZSM)
ISO 7090 steel 200 HV zinc ptd. thick-layer pass.
WSH-ISO7090-200HV-(ZSM)-27
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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
 | |
Suitable for screw thread | M27 |
Internal diameter (d1) | 28 mm |
Outer diameter (d2) | 50 mm |
Thickness (h1) | 4 mm |
Standards | ISO 7090 |
Material | Steel |
Vickers hardness, HV | 200 HV |
Surface | Zinc plated thick-layer passivation |
RoHS-compliant | Yes |
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