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Hexagon nut with clamping piece (non-metal insert)
ISO 7040, steel 10, zinc plated thick-layer passivated (VZD)
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Variants
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Fasteners with zinc-plated chrome(VI)-free thick-layer passivation (VZD) offer a sustainable alternative to surfaces containing chrome(VI). The coating consists of a zinc layer with a chrome(III)-based passivation.
Advantages at a glance:
- Chrome(VI)-free alternative to A2C or A3C
- Thermal capacity up to 120 °C
- Uniform layer distribution
ISO 7040 replaces DIN 982 | There is limited interchangeability | Threads M7, M18, M22 removed | Threads M3, M4, M30, and M36 added | Nut height changed | Width across flats for threads M10, M12, and M14 changed to 16, 18, and 21 mm | Fine thread included in ISO 10512 | Strength class 12 removed | ISO 7040 valid for strength classes 5, 8, and 10.
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