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DIN 6797 A 350-425 HV
  Standard withdrawn    

BN 789

Toothed lock washers
type A, external teeth
Spring steel 350-425 HV
zinc plated blue
  • ~UNI 8841 A
  • ~ČSN 021744
 
warnings ISO 4042
Quenched and tempered fasteners ≥ 360 HV and tempered case-hardened fasteners with electroplated coatings: Susceptible to hydrogen embrittlement!
Further notice to residual risks can be found in the introduction section.
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