EN 14399-4

replaces DIN 6914

Hexagon bolts with large head for high-strength structural bolting, System HV

tech-en14399-4


Thread Size
d		 M12 M16 M20 M22
P Pitch 1.75 2 2.5 2.5
b Ref. 23 28 33 34
ds Nominal Size 12 16 20 22
max 12.7 16.7 20.84 22.84
min 11.3 15.3 19.16 21.16
e min 23.91 29.56 35.03 39.55
k Nominal Size 8 10 13 14
max 8.45 10.75 13.9 14.9
min 7.55 9.25 12.1 13.1
s max 22 27 32 36
min 21.16 26.16 31 35
r min 1.2 1.2 1.5 1.5

Thread Size
d		 M24 M27 M30 M36
P Pitch 3 3 3.5 4
b Ref. 39 41 44 52
ds Nominal Size 24 27 30 36
max 24.84 27.84 30.84 37
min 23.16 26.16 29.16 35
e min 45.2 50.85 55.37 66.44
k Nominal Size 15 17 19 23
max 15.9 17.9 20.05 24.05
min 14.1 16.1 17.95 21.95
s max 41 46 50 60
min 40 45 49 58.8
r min 1.5 2 2 2


*acc. to DAST directive


All information is strictly informative