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Ribbed nuts Zinc-plated yellow (A2C), fine thread for frame screws
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- Serrated nut with fine thread
- Thread pitch 1.5 mm
Corrosion resistance
Approx. 96 hours of base metal corrosion in accordance with DIN EN ISO 9227-NSS
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.
Select RAL-colour code
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