Washer for high-strength screw connections (12.9/12)
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Washer for high-strength screw connections (12.9/12)
WN 7090, steel 380 HV, zinc flake, silver
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The washers are designed for use with high-strength screw connections using screws from strength class 12.9
- The hardness range of 380-450 HV corresponds to the versions of DIN EN ISO 898-3 for combination with screws from strength class 12.9
- High level of corrosion protection due to the zinc-flake coating
Application areaHigh-strength screw connections, strength class 12.9/12
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