Hexagonal bolt with shank ISO 4014, steel 5.6, zinc-plated thick-film passivated (ZSML)
ISO 4014 zc-plt. st 8.8 Thick-film pas. w sealing
SCR-HEX-ISO4014-8.8-WS18-(ZSML)-M12X55
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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 (chrome III) basis and 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
ISO 4014 replaces DIN 931 | There is some similarity | Nominal dimensions extended | Width across flats changed for M10, M12, M14 and M22.
Datasheets(X)
 | |
Thread type x nominal diameter (d1) | M12 |
Length (l1) | 55 mm |
Head height (k1) | 7.5 mm |
External drive (s1) | WS18 |
Standards | ISO 4014 |
Material | Steel |
Property class | 8.8 |
Surface | Zinc plated thick-layer passivation |
Corrosion protection period | 264 h |
Head type | Hexagon head |
Drive type | Outer hexagon |
Thread type | Metric thread |
Thread form | Standard metric thread |
Thread design | Partial thread |
Thread length (metric thread) (b) | 30 mm |
Product class | A |
RoHS-compliant | Yes |
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