Hexagonal bolt with shank ISO 4014, 8.8 steel with silver zinc-flake coating (ZFSHL)
SCR-HEX-ISO4014-8.8-(ZFSHL)-M14X100
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Zinc flake coatings are chrome (VI)-free corrosion protection coatings for commercial vehicle construction, construction machines, agricultural vehicles and equipment, and all other fields that require 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 4014 replaces DIN 931 | Standards are equivalent | Nominal dimensions extended | Width across flats changed for M10, M12, M14 and M22.
The dip-spin process typical of zinc-flake coatings can have a negative effect on the trueness to gauge in the case of small threads. For this reason, it is possible to ensure the screwability of size M5 threads, but not trueness to gauge.
Datasheets(X)
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Thread type x nominal diameter (d1) | M14 |
Length (l1) | 100 mm |
Head height (k1) | 8.8 mm |
External drive (s1) | WS21 |
Standards | ISO 4014 |
Material | Steel |
Property class | 8.8 |
Surface | Flake zinc silver |
Corrosion protection period (3) | 720 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) | 34 mm |
Product class | A |
RoHS-compliant | Yes |
Tightening torque 90% yield strength (1) | 134 Nm |
Min./max. resulting pre-load force (2) | 29.6-59.1 kN |
Disc with hardness to be used | ≥ 200 HV |
Nut to be used with strength class | ≥ 8 |
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