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Raised countersunk head screw with H cross recess ISO 7047, black zinc-nickel plated 4.8 steel (ZNBHL)
Raised countersunk head screw with H cross recess ISO 7047, black zinc-nickel plated 4.8 steel (ZNBHL) - 1 Raised countersunk head screw with H cross recess ISO 7047, black zinc-nickel plated 4.8 steel (ZNBHL) - 2
Raised countersunk head screw with H cross recess ISO 7047, black zinc-nickel plated 4.8 steel (ZNBHL) - 1
Raised countersunk head screw with H cross recess ISO 7047, black zinc-nickel plated 4.8 steel (ZNBHL) - 2

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Raised countersunk head screw with H cross recess ISO 7047, black zinc-nickel plated 4.8 steel (ZNBHL)

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Variants

Fasteners with a galvanised chromium(VI)-free, zinc-nickel plated (ZNBHL black or ZNSHL silver) are suitable for applications with the highest risk of corrosion. The coating comprises a zinc nickel alloy layer and a sealing coat (top coat with integrated lubricating particles).



The advantages at a glance:



  • Resistance of up to 720 hours against base metal corrosion in accordance with DIN EN ISO 9227 NSS

  • Adjusted friction coefficient range from 0.09-0.14 μ due to top coat with integrated lubricating particles
  • Thermal load capacity up to 120 °C

  • Even coating distribution

  • Functional and decorative

Notice

ISO 7047 replaces DIN 966 | Standards are not fully equivalent | Some head heights and head diameters have been changed | Thread lengths changed | Strength class 5.8 and 8.8 omitted | Cross recess penetration depths changed.