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Variants
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The GEOMET 321A + PLUS VL coating is a non-electrolytic, aluminium grey, thin-layer coating consisting of zinc and aluminium flake together with a transparent top layer.
- Layer thickness: 6 to 8 μm
- Friction coefficient: 0.09 to 0.14
Advantages of the GEOMET 321A + PLUS VL coating:
- Free from chromium(VI) and other substances that are harmful to health
- Complies with the EU End of Life Vehicles Directive. Very high corrosion resistance >= 720 h salt spray test in accordance with ISO 9227/DIN 50021 (compared to yellow zinc plated A2C - 72 h)
- Resistant to automotive fluids (standard fuels, diesel, engine oil, coolant etc.)
- Water-based
- Resistant to contact corrosion
- Heat-resistant to at least 300 °C
- Very good paint adhesion
Hexagon nuts complying with the DIN 934 standard cannot support test loads as per DIN EN ISO 898-2.
- The strength class designation has two vertical bars added before and after the strength code to differentiate.
DIN 934 has been withdrawn and replaced by ISO 4032/8673. There is no similarity (nominal Ø changed | Some nut heights changed | Width across flats changed for M10, M12, M14, M22 | ISO 4032 for standard thread | ISO 8673 for fine thread).
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