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Hexagon nut, low profile ISO 4035, zinc plated 5 steel with thick-layer passivation (VZD)
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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
ISO 4035 replaces DIN 439-2 (with chamfer) | There is some similarity | Strength class for stainless steels changed from 50 to 025 and from 70 to 035 | Width across flats changed for M10, M12, M14, M22 | Nominal diameter M1.8 removed | ISO 4035 only regulates standard thread | Fine thread moved to ISO 8675.
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