1. Standard
DIN571: Hex head wood screw
DIN7997: Phillips flat head wood screw
DIN7996: Phillips round head wood screw
DIN7995: Phillips oval head wood screw
DIN97: Slotted flat head wood screw
DIN96: Slotted round head wood screw
DIN95: Slotted oval head wood screw
2. Head: flat phillips, round head phillip, oval head phillip, flat head with slot, round head with slotted, oval head slotted
3. Material: Carbon Steel 1008，1018, 1022 ,SS302,SS304,SS201,SS20 2 and etc.
4. Diameter:
DIN571:M5-