Hexagon Socket Head Cap Screw
ISO 4762 steel 8.8 zinc-nickel silver (ZNSHR)
SCR-CYL-ISO4762-8.8-HS3-(ZNSHR)-M4X20
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Connection elements with a galvanised chromium (VI)-free zinc-nickel coating 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).
Overview of advantages:
- Corrosion resistance of up to 720 hrs to base metal corrosion in accordance with DIN EN ISO 9227 NSS
- Adjusted friction coefficient range of 0.12 μ–0.18 μ due to top coat with integrated lubricating particles, thermal capacity up to 120°C
- Even coat distribution
- Functional and decorative
Due to their head geometry, these screws can only be subjected to limited loads, see DIN EN ISO 898-1
Datasheets(X)
 | |
Thread type x nominal diameter (d1) | M4 |
Length (l1) | 20 mm |
Head diameter (dk) | 6.78 mm |
Head height (k1) | 3.82 mm |
Standards | ISO 4762 |
Material | Steel |
Property class | 8.8 |
Surface | Zinc nickel silver |
RoHS-compliant | Yes |
Head type | Socket head |
Drive type | Hexagon socket |
Internal drive (s1) | HS3 |
Thread type | Metric thread |
Thread form | Standard metric thread |
Shank diameter (d2) | 4 mm |
Product class | A |
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