Flat washer without chamfer ISO 7089 steel 300 HV, zinc flake silver
ISO 7089 steel 300 HV flake zinc silver
WSH-ISO7089-300HV-(ZFSH)-4
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Zinc-flake coatings are chrome (VI)-free corrosion protection coatings for commercial vehicle assembly, construction machinery, agricultural vehicles and equipment, and all other areas that have corrosion protection requirements at vehicle construction level.
Corrosion resistance for ZFSH is as follows:
- Diameter ≥ M6 - 480h*
- Diameter ≥ M10 - 720h*
* Guideline values: no base metal corrosion in parts without a screw thread in a salt spray test according to ISO9227 NSS
The name ZFSH has the following meaning:
Zinc flake coating, with top coat, silver colour, no lubrication that alters the friction coefficient.
 | |
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 | Flake zinc silver |
RoHS-compliant | Yes |
Corrosion protection period | 240 h |
Locking function | Embedding locking device |
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