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Zinc-flake coatings are chromium (VI)-free corrosion protection coatings for commercial vehicle construction, construction machines, agricultural vehicles and equipment, and all other fields that have vehicle construction standard corrosion protection requirements.
The corrosion resistance of ZFSHR is as follows:
- Diameter ≥ M6 - 480 h*
- Diameter ≥ M10 - 720 h*
- * Guideline values: No base metal corrosion in areas without thread in salt spray tests according to DIN EN ISO 9227 NSS.
The designation ZFSHR refers to the following corrosion coating:
- Zinc-flake coating, with top coat, silver colour, with lubrication that alters the friction coefficient.
- Adjusted friction coefficient range from 0.12-0.18 μ due to top coat with integrated lubricating particles
ISO 4032 replaces DIN 934 | There is no similarity | Nominal diameter changed | Some nut heights changed | Width across flats changed for M10, M12, M14, M22 | Only for standard thread | Fine thread moved to ISO 8673.
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