Hexalobular (6 Lobe) socket flat head countersunk tapping screws with cone end type C
BN 11255
ISO 14586 C
| Headform | 
                               
            Headform
            Countersunk head 90°
 
     | 
                    
| Drive | 
                               
            Drive
            Hexalobular socket
 
     | 
                    
| Thread | 
                               
            Thread
            fully threaded
 
     | 
                    
| Material | 
                               
            Material
            Steel
 
     | 
                    
| Material execution | 
                               
            Material execution
            case-hardened
 
     | 
                    
| Surface | 
                               
            Surface
            zinc plated blue
 
     | 
                    
| Hardness | 
                               
            Hardness
            450 HV
 
     | 
                    
All features
ST 2,2; ST 3,9: not included in ISO 14586
Standard
                        ISO 14586 C
                    Additional information
Countersunk must be designed according to the corresponding standard!
Features
| Headform | 
                               
            Headform
            Countersunk head 90°
 
     | 
                    
| Drive | 
                               
            Drive
            Hexalobular socket
 
     | 
                    
| Thread | 
                               
            Thread
            fully threaded
 
     | 
                    
| Material | 
                               
            Material
            Steel
 
     | 
                    
| Material execution | 
                               
            Material execution
            case-hardened
 
     | 
                    
| Surface | 
                               
            Surface
            zinc plated blue
 
     | 
                    
| Hardness | 
                               
            Hardness
            450 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