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(Standard withdrawn)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
 | 
All features
All prices are based on the minimum order quantity. If you have any questions or special requirement, please contact Bossard.
M5a; M8a: for hex head screws
Standard
Features
| Material | 
            Material
            Spring steel
 | 
| Surface | 
            Surface
            black
 | 
| Hardness | 
            Hardness
            350-425 HV
 | 
Warnings
BN 20231 - DIN 6798 A
Serrated lock washers type A, external serrations - Spring steel - zinc plated with thick layer passivation
BN 781 - DIN 6798 A
Serrated lock washers type A, external serrations - Spring steel - zinc plated blue
BN 80024 - DIN 6798 A
Serrated lock washers type A, external serrations - Spring steel - zinc plated yellow