Screw, hexagon head, inch ASME B18.2.1 steel GR5 zinc flake silver (ZFSHL)
SCR-HCS-GR5-(ZFSHL)-7/16_20X1 1/4
Art.-no. 7693015190
EAN 4066441582860
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- The mechanical properties are regulated in SAE J429
- The thread length is based on ASME B18.2.1
- 1 inch (in) = 25.4 mm
- Standard thread tolerance in accordance with ASME B1.1 = 2A (for external thread)
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.
Corrosion resistance for ZFSHL:
- Diameter ≥ M6 - 480 h*
- Diameter ≥ M10 - 720 h*
* Reference values: No base metal corrosion in areas without thread in salt spray tests according to DIN EN ISO 9227 NSS.
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 0.09 μ to 0.14 μ due to top coat with integrated lubricating particles
Datasheets(X)
 | |
Nominal diameter (d1) | 7/16 in |
Length (l1) | 1-1/4 in |
Thread type | UNF |
Head height (k1) | 0.291 in |
External drive (s1) | WS5/8 |
Material | Steel |
Property class | GR5 |
Surface | Flake zinc silver |
Width across flats | 5/8 inch |
Thread length (lg) | 1-1/8 in |
Standards | ASME B18.2.1 |
Nut to be used with strength class | ≥ GR5 |