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Ribbed nuts W-0273, steel 10, zinc-plated, yellow chromated (A2C)
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Variants
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Standard metric thread
Strength class 10
For screws up to strength class 10.9 and serrated screws with strength class 100
Surface
Yellow galvanised (A2C)
Corrosion resistance
Approx. 96 h base metal corrosion in line with DIN EN ISO 9227-NSS (DIN 50021-SS)
Working principle of locking ribs:
During tightening, the locking ribs roll the counter-material in the area of the bolt contact surface. This causes a plastic deformation that hardens the surface. No significant settling is determined at the end of tightening. The locking ribs limit the amount of settling of the connection and therefore reduce the loss of pretensioning force.
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