Hexagon nut with flange and clamping piece (full metal)
EN 1664 steel 10, zinc flake, silver
NUT-HEX-FLG-EN1664-10-WS30-(ZFSHL)-M20
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Zinc-flake coatings are chrome-(VI)-free corrosion protection coatings for commercial vehicle assembly, construction machinery, agricultural vehicles and equipment, and all other areas that have corrosion protection requirements at vehicle construction level.
Corrosion resistance for ZFSHL is:
- Diameter ≥ M6 - 480h*
- Diameter ≥ M10 - 720h*
The designation ZFSHL refers to the following corrosion coating:
- Zinc-flake coating, with top coat, silver colour, with friction value adjusted lubrication.
- Adjusted friction coefficient range from 0.09μ – 0.14μ due to top coat with integrated lubricating particles
ISO EN 1664 replaces DIN 6927 | There is some limited similarity | Nuts with fine thread included in DIN EN 1667 | Nut height changed | Width across flats changed from 15 mm to 16 mm for M10 dimension.
Datasheets(X)
 | |
Thread type x nominal diameter (D) | M20 |
Height (h1) | 20.4 mm |
Flange diameter (dc) | 42.8 mm |
External drive (s1) | WS30 |
Standards | EN 1664 |
Material | Steel |
Property class | 10 |
Surface | Flake zinc silver |
RoHS-compliant | Yes |
Corrosion protection period | 720 h |
Locking device operating principle | Single part clamping nut metal |
Locking function | Locking against loosening by clamping |