Hexagon nut with flange EN 1661, steel, strength class 10, zinc flake, silver (ZFSHL)
EN 1661 steel 10 zinc flake silver
NUT-HEX-FLG-EN1661-10-(ZFSHL)-M20
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Zinc-flake coatings are chromium(VI)-free corrosion protection coatings for commercial vehicle construction, construction machines, agricultural vehicles and equipment, and all other fields that have vehicle construction standard corrosion protection requirements.
The corrosion resistance of ZFHSL is as follows:
- Diameter ≥ M6 - 480h*
- Diameter ≥ M10 - 720h*
The designation ZFSHL refers to the following corrosion coating:
- Zinc flake coating, with top coat, silver colour, with lubrication that alters the friction coefficient.
- Adjusted friction coefficient range from 0.09μ - 0.14μ due to top coat with integrated lubricating particles
ISO EN 1661 replaces DIN 6923 | There is some similarity | Fine thread removed | Width across flats for size M10 changed from 15 mm to 16 mm.
Datasheets(X)
 | |
Thread type x nominal diameter (D) | M20 |
Height (h1) | 20 mm |
Flange diameter (dc) | 42.8 mm |
External drive (s1) | WS30 |
Standards | EN 1661 |
Material | Steel |
Property class | 10 |
Surface | Flake zinc silver |
RoHS-compliant | Yes |
Corrosion protection period | 720 h |
Design | With flange |
Thread form | Standard metric thread |
Min./max. friction | 0.09-0.14 µ |
