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Countersunk head screw with hexagon socket ISO 10642, steel 10.9, zinc-plated, thick-film passivated (ZSML)
Countersunk head screw with hexagon socket ISO 10642, steel 10.9, zinc-plated, thick-film passivated (ZSML) - 1
Countersunk head screw with hexagon socket ISO 10642, steel 10.9, zinc-plated, thick-film passivated (ZSML) - 2

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Countersunk head screw with hexagon socket ISO 10642, steel 10.9, zinc-plated, thick-film passivated (ZSML)

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Variants

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



Overview of advantages:



  • Higher quality replacement of common galvanised 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 layer distribution

  • Functional and decorative
Notice

ISO 10642 replaces DIN 7991 | There is some limited similarity (some head heights and head diameters have been changed | nominal Ø M18, M22, M24 are omitted | Stainless steels removed | strength classes 10.9 and 12.9 added).



These screws can only be subjected to limited loads due to their head geometry, see DIN EN ISO 898-1