Hexagon Socket Head Cap Screw
ISO 4762/DIN 912 steel 10.9 zinc flake, silver
SCR-CYL-ISO4762-10.9-HS17-ZFSHL-M20X320
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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 4762 replaces DIN 912 | There is some similarity | Nominal range changed | Fine thread moved to ISO 12474.
Datasheets(X)
 | |
Thread type x nominal diameter (d1) | M20 |
Length (l1) | 320 mm |
Head diameter (dk) | 30 mm |
Head height (k1) | 20 mm |
Standards | ISO 4762 |
Material | Steel |
Property class | 10.9 |
Surface | Flake zinc silver |
RoHS-compliant | Yes |
Corrosion protection period | 720 h |
Head type | Socket head |
Drive type | Hexagon socket |
Internal drive (s1) | HS17 |
Thread type | Metric thread |
Thread form | Standard metric thread |
Product class | A |
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