Serrated lock washers internal and external serrations
BN 783
| Brandtype | 
                               
            Brandtype
            DD
 
     | 
                    
| Material | 
                               
            Material
            Spring steel
 
     | 
                    
| Surface | 
                               
            Surface
            zinc plated blue
 
     | 
                    
| Hardness | 
                               
            Hardness
            430-510 HV
 
     | 
                    
All features
Features
| Brandtype | 
                               
            Brandtype
            DD
 
     | 
                    
| Material | 
                               
            Material
            Spring steel
 
     | 
                    
| Surface | 
                               
            Surface
            zinc plated blue
 
     | 
                    
| Hardness | 
                               
            Hardness
            430-510 HV
 
     | 
                    
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 on our web page: Notes on use