Connection elements with galvanised chromium (VI)-free zinc thick-film passivation (VZD) offer a future-proof alternative to surfaces containing chromium (VI). The coating consists of a zinc layer with passivation on a chromium (III) basis.
Overview of advantages:
- Chromium (VI)-free alternative to A2C or A3C
- Thermal capacity up to 120°C
- Even coat distribution
DIN 980 has been withdrawn and replaced by ISO 7042. There is some limited similarity (thread M3, M4, M7, M18, M22, M27, M33 and M39 removed | Nut height changed | Width across flats changed for M10, M12 and M14 to 16, 18 and 21 mm | Fine thread included in ISO 10513 | ISO 7042 applies to the strength classes 5, 8, 10, 12).
Select RAL-colour code
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