Hexalobular screw, cylindrical head
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Hexalobular screw, cylindrical head
ISO 4762 / DIN 912, steel 10.9, zinc flake coating, silver (ZFSHR).
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Zinc flake coatings are chromium (VI)-free corrosion protection coatings for the production of commercial vehicles, construction machines, agricultural vehicles and machinery, and other applications where corrosion protection is required during vehicle manufacturing.
The corrosion resistance of ZFSHR is:
The ZFSHR marking refers to the following anti-corrosion coating:
The corrosion resistance of ZFSHR is:
- Diameter ≥M6 - 480h*
- Diameter ≥ M10 - 720h*
* Reference values: No base metal corrosion in threadless parts in salt-spray tests as per DIN EN ISO 9227 NSS.
The ZFSHR marking refers to the following anti-corrosion coating:
- Zinc flake coating, with a top layer, silver-coloured, friction-modifying lubrication.
- The adjusted friction coefficient ranges from 0.12μ to 0.18μ due to the presence of integrated lubricating particles in the surface layer.
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