Serrated lock washers type A, external serrations
BN 779
DIN 6798 A
(Standard withdrawn)
~UNI 8842 A
~ČSN 021745
| Material |
Material
Spring steel
|
| Surface |
Surface
black
|
| Hardness |
Hardness
350-425 HV
|
Alle Eigenschaften
M5a; M8a: for hex head screws
Norm
DIN 6798 A (Standard withdrawn)
~UNI 8842 A
~ČSN 021745
Eigenschaften
| Material |
Material
Spring steel
|
| Surface |
Surface
black
|
| Hardness |
Hardness
350-425 HV
|