Round head screw with square neck DIN 603, steel 8.8, zinc-nickel, silver (ZNSHL)
DIN 603 steel 8.8. zinc nickel silver
SCR-MHD-DIN603-8.8-(ZNSHL)-M12X55
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Connection elements with a galvanised chrome (VI)-free zinc-nickel coating (ZNBHL black or ZNSHL silver) are suitable for applications with a high risk of corrosion. The coating comprises a zinc-nickel alloy layer and a seal (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 from 0.09μ - 0.14μ due to top coat with integrated lubricating particles
- thermal capacity up to up to 120°C
- Even coat distribution
- Functional and decorative
Datasheets(X)
 | |
Thread type x nominal diameter (d1) | M12 |
Length (l1) | 55 mm |
Material | Steel |
Property class | 8.8 |
Surface | Zinc nickel silver |
Head diameter (dk) | 30.65 mm |
Head height (k1) | 6.95 mm |
Square width (V) | 12.7 mm |
Square height (f) | 8.75 mm |
Standards | DIN 603 |
RoHS-compliant | Yes |
Corrosion protection period | 720 h |
Head type | Cup head square neck |
Head details | With square neck |
Thread type | Metric thread |
Pitch | 1.75 mm |
Thread form | Standard metric thread |
Shank diameter | 12 mm |
Thread length (metric thread) (b) | 30 mm |
Product class | C |
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