Nom size M3 : Pitch=0.5 d1=3 D=6 H=1.7 B=2 C=2.3 L=6-20 s=12, Nom size M4 : Pitch=0.7 d1=4 D=8 H=2.3 B=2.5 C=2.9 L=6-50 s=14, Nom size M5 : Pitch=0.8 d1=5 D=10 H=2.8 B=3 C=3.6 L=8-50 s=16, Nom size M6 : Pitch=1 d1=6 D=12 H=3.3 B=4 C=4.7 L=8-50 s=18, Nom size M8 : Pitch=1.25 d1=8 D=16 H=4.4 B=5 C=5.9 L=12-70 s=22, Nom size M10 : Pitch=1.5 d1=10 D=20 H=5.5 B=6 C=7.0 L=15-70 s=26, Nom size M12 : Pitch=1.75 d1=12 D=24 H=6.5 B=8 C=9.4 L=20-50 s=30, Nom size M16 : Pitch=2 d1=16 D=30 H=7.5 B=10 C=11.7 L=25-60 s=38 How to order : CODE 690601, Name Flat head socket screw, Material, Nominal size & thread, Length