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Hex socket flat countersunk head screws, DIN 7991

d1M2M2,5M3M4M5M6M8M10M12M14M16M20M24
d2 max4568101216202427303639
k max1.21.51.72.32.83.34.45.56.577.58.514
s1.31.522.53456810101214
t0.750.81.21.82.32.53.54.44.64.85.35.910.3
a90°90°90°90°90°90°90°90°90°90°90°90°60°
Full thread length up to L--2025303540405050607090
b  1820222428323640445260