Waved spring washers
BN 798
DIN 137 B
(Standard withdrawn)
~UNI 8840 B
~ČSN 021734
| Material | 
                               
            Material
            Spring steel
 
     | 
                    
| Surface | 
                               
            Surface
            mechanical zinc plated blue
 
     | 
                    
| Hardness | 
                               
            Hardness
            420-490 HV
 
     | 
                    
All features
Standard
                        DIN 137 B (Standard withdrawn)
~UNI 8840 B
~ČSN 021734
                    Features
| Material | 
                               
            Material
            Spring steel
 
     | 
                    
| Surface | 
                               
            Surface
            mechanical zinc plated blue
 
     | 
                    
| Hardness | 
                               
            Hardness
            420-490 HV
 
     |