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DIN 6798 A 350-425 HV
  Standard withdrawn    

BN 781

Serrated lock washers
type A, external serrations
Spring steel 350-425 HV
zinc plated blue
  • ~UNI 8842 A
  • ~ČSN 021745
 
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.
3D Cadenas
M5a; M8a: for hex head screws
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