Flat washer without chamfer ISO 7089 steel 300 HV, zinc-nickel silver (ZNSH)
ISO 7089 steel 300 HV, zinc-nickel
WSH-ISO7089-300HV-(ZNSH)-D4
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Washers with a zinc-plated chromium (VI)-free zinc-nickel silver coating (ZNSH) are suitable for applications with a high risk of corrosion. They are the perfect visual and functional addition to the screws and nuts in the programme that have a zinc-nickel silver (ZNSHL) surface.
Corrosion resistance:
- Washers for ≥ M2 - 360h*
- Washers for ≥ M4 - 600h*
- Washers for ≥ M10 - 720h*
- *No base metal corrosion at points without thread in salt spray mist testing according to DIN EN ISO 9227 NSS
Overview of advantages:
- Corrosion resistance of up to 720 hours against base metal corrosion in accordance with DIN EN ISO 9227 NSS
- Chromium(VI)-free
- Thermal capacity up to 120°C
- Even coating distribution
- Functional and decorative
Datasheets(X)
 | |
Suitable for screw thread | M4 |
Internal diameter (d1) | 4.3 mm |
Outer diameter (d2) | 9 mm |
Thickness (h1) | 0.8 mm |
Standards | ISO 7089 |
Material | Steel |
Vickers hardness, HV | 300 HV |
Surface | Zinc nickel silver |
RoHS-compliant | Yes |
Corrosion protection period | 600 h |
Locking function | Embedding locking device |
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