DIN 434

Square taper washers for U-sections

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For Nominal Thread Diameter M8 M10 M12 M16
d min=nominal size 9 11 13.5 17.5
max 9.36 11.43 13.93 17.93
a Nominal Size 22 22 26 32
min 20 20 24 29.5
max 24 24 28 34.5
b Nominal Size 22 22 30 36
min 21.35 21.35 29.35 35.2
max 22.65 22.65 30.65 36.8
e Ref. 2.9 2.9 3.7 4.45
h Nominal Size 3.8 3.8 4.9 5.9
min 3.2 3.2 3.9 4.9
max 4.4 4.4 5.9 6.9
r ≈ 1.6 1.6 2 2.4
t ≈ 0.5 0.5 0.7 0.8
per 1000 units ≈ kg 9.57 8.85 18.2 31.4

For Nominal Thread Diameter M20 M22 M24 M27
d min=nominal size 22 24 26 30
max 22.52 24.52 26.52 30.52
a Nominal Size 40 44 56 56
min 37.5 41.5 53 53
max 42.5 46.5 59 59
b Nominal Size 44 50 56 56
min 43.2 49.2 55.05 55.05
max 44.8 50.8 56.95 56.95
e Ref. 5.25 6 6.26 6.26
h Nominal Size 7 8 8.5 8.5
min 6 7 7.3 7.3
max 8 9 9.7 9.7
r ≈ 2.8 3.2 3.2 3.2
t ≈ 0.9 1 1 1
per 1000 units ≈ kg 56.9 82.3 128 119



All information is strictly informative