DIN7991 Hex Socket Flat Head Screw
        
                                
        
                                
         DIN 7991  
	
        

         *All measurements in millimeters (mm)* 

        

        

        
	
		
        
			
				d 
			
			
				b 
			
			
				t 
			
			
				e 
			
			
				s 
			
			
				k max 
			
			
				d1 
			
		
        
		
        
			
				M3 
			
			
				12 
			
			
				1.2 
			
			
				2.3 
			
			
				2 
			
			
				1.7 
			
			
				6 
			
		
        
		
        
			
				M4 
			
			
				14 
			
			
				1.8 
			
			
				2.87 
			
			
				2.5 
			
			
				2.3 
			
			
				8 
			
		
        
		
        
			
				M5 
			
			
				16 
			
			
				2.3 
			
			
				3.44 
			
			
				3 
			
			
				2.8 
			
			
				10 
			
		
        
		
        
			
				M6 
			
			
				18 
			
			
				2.5 
			
			
				4.58 
			
			
				4 
			
			
				3.3 
			
			
				12 
			
		
        
		
        
			
				M8 
			
			
				22 
			
			
				3.5 
			
			
				5.72 
			
			
				5 
			
			
				4.4 
			
			
				16 
			
		
        
		
        
			
				M10 
			
			
				26 
			
			
				4.4 
			
			
				6.86 
			
			
				6 
			
			
				5.5 
			
			
				20 
			
		
        
		
        
			
				M12 
			
			
				30 
			
			
				4.6 
			
			
				9.15 
			
			
				8 
			
			
				6.5 
			
			
				24 
			
		
        
		
        
			
				M16 
			
			
				38 
			
			
				5.3 
			
			
				11.43 
			
			
				10 
			
			
				7.5 
			
			
				30 
			
		
        
		
        
			
				M20 
			
			
				46 
			
			
				5.9 
			
			
				13.72 
			
			
				12 
			
			
				8.5 
			
			
				36 
			
		
        
		
        
			
				M24 
			
			
				54 
			
			
				10.3 
			
			
				16 
			
			
				14 
			
			
				14 
			
			
				39 
			
		
        
	        

        
	
        

         All information is strictly informative