Countersunk head screw with hexagon socket ISO 10642, steel 8.8, zinc-plated, thick-film passivated (ZSML)
ISO 10642 st 08.8 zp thick-layer pass w. sealing
SCR-ISO10642-08.8-HS5-(ZSML)-M8X20
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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
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
Datasheets(X)
 | |
Thread type x nominal diameter (d1) | M8 |
Length (l1) | 20 mm |
Head diameter (dk) | 17.92 mm |
Head height (k1) | 4.96 mm |
Internal drive (s1) | HS5 |
Standards | ISO 10642 |
Material | Steel |
Property class | 08.8 |
Surface | Zinc plated thick-layer passivation |
RoHS-compliant | Yes |
Head type | Countersunk head |
Drive type | Hexagon socket |
Thread type | Metric thread |
Thread form | Standard metric thread |
Product class | A |
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