DIN Fasteners Standard 137 A

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Equivalent Standards

DIN 137 A - Spring washers curved

DIN 137 A - Spring washers curved Dimensions

Nominal Size d1 d2 s h kg/1000pcs For Size
H14 js16 Nominal Size tol. min. max.
3 3.2 8 0.5 ± 0.05 0.8 1.6 0.166 M3
3.5 3.7 8 0.5 ± 0.05 0.9 1.8 0.154 M3.5
4 4.3 9 0.5 ± 0.05 1 2 0.193 M4
5 5.3 11 0.5 ± 0.05 1.1 2.2 0.286 M5
6 6.4 12 0.5 ± 0.05 1.3 2.6 0.318 M6
7 7.4 14 0.8 ± 0.06 1.5 3 0.7 M7
8 8.4 15 0.8 ± 0.06 1.5 3 0.762 M8
10 10.5 21 1 ± 0.07 2.1 4.2 2.04 M10
12 13 24 1.2 ± 0.07 2.5 5 3.01 M12
14 15 28 1.6 ± 0.08 3 6 5.51 M14
16 17 30 1.6 ± 0.08 3.2 6.4 6.03 M16
18 19 34 1.6 ± 0.08 3.3 6.6 7.84 M18
20 21 36 1.6 ± 0.08 3.7 7.4 8.43 M20
22 23 40 1.8 ± 0.1 3.9 7.8 11.9 M22
24 25 44 1.8 ± 0.1 4.1 8.2 14.5 M24
27 28 50 2 ± 0.1 4.7 9.4 21.1 M27
30 31 56 2.2 ± 0.1 5 10 29.5 M30
33 34 60 2.2 ± 0.1 5.3 10.6 33.1 M33
36 37 68 2.5 ± 0.15 5.8 11.6 50.2 M36

DIN 137 Curved Spring Washers Weights

Size Weight
Type A Type B
M1 0.006
M1.2 0.009
M1.4 0.010
M1.7 0.020
M1.8 0.020
M2 0.028
M2.3 0.035
M2.6 0.041
M3 0.063 0.166
M3.5 0.088 0.154
M4 0.140 0.193
M5 0.222 0.266
M6 0.247 0.318
M7 0.265 0.800
M8 0.476 0.76
M10 1.05 2.04
M12 3.1
M14 5.5
M16 6.0
M18 7.8
M20 8.43
M22 11.9
M24 14.5
M27 21.1
M30 29.5

Weights are in kilograms per 1,000 pieces unless otherwise specified. All weights are approximations and strictly informative.