Hexagonal nut ISO 4032 steel, strength class 8, zinc-nickel-plated black (ZNBHL)
ISO 4032 steel 8, zinc-nickel, black
NUT-HEX-ISO4032-6-WS7-(ZNBHL)-M4
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Fasteners with a zinc-plated chromium (VI)-free zinc-nickel black coating (ZNBHL) are suitable for applications with a high risk of corrosion. The coating comprises a zinc-nickel alloy layer and a sealing coat (top coat with integrated lubricating particles).
Corrosion resistance:
- Diameter ≥ M2 – 360h*
- Diameter ≥ M4 – 480h*
- Diameter ≥ M10 – 720h*
- *No base metal corrosion at points without thread in salt spray mist testing according to DIN EN ISO 9227 NSS
Overview of advantages:
- Corrosion resistance of up to 720 hrs to base metal corrosion in accordance with DIN EN ISO 9227 NSS
- Chromium(VI)-free
- Adjusted friction coefficient range of 0.09 μ–0.14 μ due to top coat with integrated lubricating particles
- Thermal capacity up to 120°C
- Even coat distribution
- Functional and decorative
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.
Datasheets(X)
 | |
Thread type x nominal diameter (D) | M4 |
Height (m1) | 3.2 mm |
External drive (s1) | WS7 |
Standards | ISO 4032 |
Material | Steel |
Property class | 6 |
Hardness category | 0 - not applicable |
Surface | Zinc nickel black |
Corrosion protection period | 480 h |
Regulated area | 0 - not applicable |
RoHS-compliant | Yes |