self drilling screw countersunk head, cross recess PH2, DIN 7504 P, metal tapping thread, blue zinc plated 6.3x50 mm ( 250 ST ) 6.3 x 50 mm | PH2
                
            
                        
                Product number: 7504100-6.3-50O
            
                                        
                                    
            
                        
                                                             self drilling screw according to DIN-standard
  countersunk head
  hardened, blue zinc plated
  additional sizes unter item no. 3112*
 (chapter: screws for window production)