FLAT HEAD SOCKET CAP SCREWS
DIN 7991
All Dimensions in Millimeters
Basic
Screw Diameter
Body Diameter Head Diameter Head Height Hex. Socket Size Key Engagement
Max. Min. Theoretical Sharp Max. Absolute Min. Reference Flushness Tolerance Nom. Min.
M3 3.0 2.86 6.72 5.35 1.86 0.30 2.0 1.1
M4 4.0 3.82 8.96 7.80 2.48 0.30 2.5 1.5
M5 5.0 4.82 11.20 9.75 3.10 0.35 3.0 1.9
M6 6.0 5.82 13.44 11.70 3.72 0.35 4.0 2.2
M8 8.0 7.78 17.92 15.60 4.96 0.40 5.0 3.0
M10 10.0 9.78 22.40 19.50 6.20 0.50 6.0 3.6
M12 12.0 11.73 26.88 23.40 7.44 0.60 8.0 4.3
M14 14.0 13.73 30.24 26.18 8.12 0.70 10.0 4.7
M16 16.0 15.73 33.60 28.96 8.80 0.80 10.0 4.8
M20 20.0 19.67 40.32 34.60 10.16 1.00 12.0 5.6