Hexagonal bolt with shank DIN 931, steel 10.9, zinc flake, silver, Geomet
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Hexagonal bolt with shank DIN 931, 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
Satisfies EU end-of-life vehicle directive.
Very high corrosion resistance =720 h salt spray mist test according to ISO 9227/DIN 50021 (yellow galvanised in comparison A2C – 72 h)
Resistance to automotive operating resources (standard fuels, diesel, engine oil, coolant etc.),
environmental compatibility, water-based
resistance to contact corrosion,
heat resistance of at least 300°C
Excellent paint adhesion
Notice
DIN 931 has been withdrawn and replaced by ISO 4014. There is some similarity (nominal dimensions extended | Width across flats changed for M10, M12, M14 and M22).
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