Hex Wooden Screw  DIN571, ANSI B18.2.1  

1.Standard: DIN571 
   Diameter: M5~M12  
   Length: 12~200mm
   Class:4.8
2. Standard: ANSI B18.2.1 
   Diameter: 1/4" -1/2" 
   Length: 1/2" -8"