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Hexagonal bolt with thread up to the head
DIN 933 steel 10.9, zinc flake, silver, Geomet
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The GEOMET 321A + PLUS VL coating is a non-electrolytic, aluminium-grey, thin-layered coating consisting of zinc and aluminium flakes together with a transparent top coat.
- Layer thickness: 6-8 µm
- Friction coefficient: 0.09–0.14
Advantages of the GEOMET 321A + PLUS VL coating:
- Contains no chromium VI and no other materials that are hazardous to health
- Fulfils EU directive on end-of-life vehicles.
- Very high corrosion resistance >=720-h salt spray test according to ISO 9227/DIN 50021 (in comparison to yellow galvanised A2C – 72 h)
- Resistance to automotive fuels and fluids (standard fuels, diesel, engine oil, coolant etc.)
- Environmentally friendly, water-based
- Resistant to contact corrosion
- Heat resistance at least 300°C
- Excellent paint adhesion
DIN 933 has been withdrawn and replaced by ISO 4017. There is some similarity (nominal dimensions extended | Width across flats changed for M10, M12, M14 and M22).
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