DIN 433-1

Flat washers - Small series

With a hardness upto 250HV
Designed for use with cheese head screws

tech-din433-1






For Nominal Thread Diameter M1 M1.2 M1.4 M1.6
d min=nominal size 1.1 1.3 1.5 1.7
max 1.24 1.44 1.64 1.84
dc max 2.5 3 3 3.5
min 2.25 2.75 2.75 3.2
h Nominal Size 0.3 0.3 0.3 0.3
max 0.35 0.35 0.35 0.35
min 0.25 0.25 0.25 0.25
per 1000 units ≈ kg 0.01 0.014 0.012 0.017

For Nominal Thread Diameter M1.8 M2 M2.5
d min=nominal size 2 2.2 2.7
max 2.14 2.34 2.84
dc max 4 4.5 5
min 3.7 4.2 4.7
h Nominal Size 0.3 0.3 0.5
max 0.35 0.35 0.55
min 0.25 0.25 0.45
per 1000 units ≈ kg 0.022 0.029 0.055

For Nominal Thread Diameter M3 M3.5 M4
d min=nominal size 3.2 3.7 4.3
max 3.38 3.88 4.48
dc max 6 7 8
min 5.7 6.64 7.64
h Nominal Size 0.5 0.5 0.5
max 0.55 0.55 0.55
min 0.45 0.45 0.45
per 1000 units ≈ kg 0.079 0.109 0.14

For Nominal Thread Diameter M5 M6 M8
d min=nominal size 5.3 6.4 8.4
max 5.48 6.62 8.62
dc max 9 11 15
min 8.64 10.57 14.57
h Nominal Size 1 1.6 1.6
max 1.1 1.8 1.8
min 0.9 1.4 1.4
per 1000 units ≈ kg 0.326 0.79 1.52

For Nominal Thread Diameter M10 M12 M14
d min=nominal size 10.5 13 15
max 10.77 13.27 15.27
dc max 18 20 24
min 17.57 19.48 23.48
h Nominal Size 1.6 2 2.5
max 1.8 2.2 2.7
min 1.4 1.8 2.3
per 1000 units ≈ kg 2.11 2.85 5.41

For Nominal Thread Diameter M16 M18 M20
d min=nominal size 17 19 21
max 17.27 19.33 21.33
dc max 28 30 34
min 27.48 29.48 33.38
h Nominal Size 2.5 2.5 3
max 2.7 2.7 3.3
min 2.3 2.3 2.7
per 1000 units ≈ kg 7.63 8.31 13.2

For Nominal Thread Diameter M24 M30 M36
d min=nominal size 25 31 37
max 25.33 31.39 37.62
dc max 39 50 58
min 38.38 49.38 56.8
h Nominal Size 4 4 5
max 4.3 4.3 5.6
min 3.7 3.7 4.4
per 1000 units ≈ kg 22.1 38 61.5



All information is strictly informative