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                  Standards:   | 
                  DIN571 - hexagon head wood screw 
                    DIN95 - slotted raised countersunk head wood screw 
                      DIN96 - slotted round head wood screw 
                      DIN97 - slotted flat countersunk head wood screw 
                      DIN7995 - phillips raised countersunk head wood screw 
                      DIN7996 - phillips round head wood screw 
                      DIN7997 - phillips flat countersunk head wood screw  
                    ANSI  B18.6.1 / ASME B18.6.1;  
                    BS1210   | 
                 
                
                  Heads:  | 
                  Hexagon, countersunk, raised countersunk (oval), round   | 
                 
                
                  Drives:  | 
                  Slot, cross recessed, phillips, phillips+slot combination   | 
                 
                
                  Thread end:  | 
                  Type A, type AB   | 
                 
                
                  Size:  | 
                   Metric: 4~20; Inch: #0~#24  | 
                 
                
                  Length:   | 
                  Metric: max. 100mm; UNC: max. 4"   | 
                 
                
                  Material:   | 
                  SS304, SS316   | 
                 
                
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