| 
                                                                     Type  | 
                                                                    
                                                                     Cross recessed head screws  | 
                                                                
| 
                                                                     Thread type  | 
                                                                    
                                                                     M  | 
                                                                
| 
                                                                     Thread size  | 
                                                                    
                                                                     M4  | 
                                                                
| 
                                                                     Body length  | 
                                                                    
                                                                     40mm  | 
                                                                
| 
                                                                     Material  | 
                                                                    
                                                                     Carbon steel  | 
                                                                
| 
                                                                     Surface treatment  | 
                                                                    
                                                                     Zinc plating  | 
                                                                
| 
                                                                     Compatible devices  | 
                                                                    
                                                                     Flat washers, Hexagon nuts, Spring washers  | 
                                                                
| 
                                                                     Compatible product materials  | 
                                                                    
                                                                     Carbon steel  | 
                                                                
| 
                                                                     Flat washers (Sold separately)  | 
                                                                    
                                                                     FW-WZ-M4  | 
                                                                
| 
                                                                     Spring washers (Sold separately)  | 
                                                                    
                                                                     SW-WZ-M4  | 
                                                                
| 
                                                                     Nuts (Sold separately)  | 
                                                                    
                                                                     HN-WZ-M4  | 
                                                                
| 
                                                                     Direction of thread  | 
                                                                    
                                                                     Right-hand  | 
                                                                
| 
                                                                     Threading  | 
                                                                    
                                                                     Fully threaded  | 
                                                                
| 
                                                                     Thread length  | 
                                                                    
                                                                     40mm  | 
                                                                
| 
                                                                     Thread spacing  | 
                                                                    
                                                                     Coarse pitch  | 
                                                                
| 
                                                                     Thread pitch  | 
                                                                    
                                                                     0.7mm  | 
                                                                
| 
                                                                     Head shape  | 
                                                                    
                                                                     Truss  | 
                                                                
| 
                                                                     Drive style  | 
                                                                    
                                                                     Phillips  | 
                                                                
| 
                                                                     Driver size  | 
                                                                    
                                                                     No. 2  | 
                                                                
| 
                                                                     Tip shape  | 
                                                                    
                                                                     Flat end  | 
                                                                
| 
                                                                     Head diameter  | 
                                                                    
                                                                     8.9mm  | 
                                                                
| 
                                                                     Head height  | 
                                                                    
                                                                     2.65mm  | 
                                                                
| 
                                                                     Overall diameter  | 
                                                                    
                                                                     8.9mm  | 
                                                                
| 
                                                                     Overall length  | 
                                                                    
                                                                     42.65mm  | 
                                                                
| 
                                                                     Representative standard  | 
                                                                    
                                                                     DIN  |