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Countersunk screw with hexalobular head
Countersunk screw with hexalobular head - 1
Countersunk screw with hexalobular head - 2

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Countersunk screw with hexalobular head

ISO 14581 steel 08.8, zinc-plated thick-film passivated with sealing (ZSML)

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Connection elements with zinc-plated chromium(VI)-free thick-film passivation (ZSML) offer a future-proof alternative compared to surfaces containing chromium(VI). The coating consists of a zinc layer with passivation on a chromium(III) basis and a sealing coat (top coat with integrated lubricating particles).



Overview of advantages:



  • Higher quality replacement for common zinc-plated coatings such as A2C or A3C

  • Adjusted friction coefficient range from 0.09 μ – 0.14 μ due to top coat with integrated lubricating particles

  • Thermal capacity up to 120°C

  • Even coating distribution

  • Functional and decorative
Notice
  • Head dimensions in ISO 14581 countersunk screws are gauged in accordance with ISO 7721

  • Some screws with short dimensions are threaded up to the head, see ISO 14581

  • Countersinks for screw heads in accordance with ISO 14581 must comply with ISO 15065