Material: Carbon steel 8.8 12.9 blue blue zinc zinc alloy stainless steel SUS304 
 DIN6912 thin hexagonal head screws (wrench-oriented thin with holes) 


 d b d2 min t1 min s k max d1 max 
 M4 14 2 1.48 3 2.8 7 
 M5 16 2.5 1.88 4 3.5 8.5 
 M6 18 3 2.38 5 4 10 
 M8 22 4 2.88 6 5 13 
 M10 26 5 3.35 8 6.5 16 
 M12 30 6 3.85 10 7.5 18 
 M14 34 7 4.35 12 8.5 21 
 M16 38 8 5.35 14 10 24 
 M20 46 10 6.32 17 12 30 
 M24 54 12 6.82 19 14 36 
 M30 66 15 8.82 22 17.5 45