DIN 478 Specifications

DIN478 Square Head Bolt with collar - product drawing - l=shank length, b=thread length, d=dia., k=head height,d1=head dia.

All measurements in millimeters (mm)

d e s b k d1
M8 10 8 22 10 13.5
M10 13 10 26 13 16.5
M12 17 13 30 15 19.5
M16 21 16 38 20 25

All information is strictly informative