Screw with flattened half round head and hexagon socket ISO 7380-1 steel FK010.9, zinc-nickel-plated black (ZNBHL)
ISO 7380-1, steel 010.9, zinc-nickel, black
SCR-ISO7380/1-010.9-HS2,5-(ZNBHL)-M4X8
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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
These screws can only be subjected to limited loads due to their head geometry, see DIN EN ISO 898-1
Datasheets(X)
 | |
Thread type x nominal diameter (d1) | M4 |
Length (l1) | 8 mm |
Head diameter (dk) | 7.6 mm |
Head height (k1) | 2.2 mm |
Standards | ISO 7380-1 |
Material | Steel |
Property class | 010.9 |
Surface | Zinc nickel black |
Corrosion protection period | 480 h |
Head type | Button head |
Drive type | Hexagon socket |
Internal drive | HS2.5 |
Thread type | Metric thread |
Thread form | Standard metric thread |
Thread length (metric thread) | 8 mm |
Product class | A |
RoHS-compliant | Yes |
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