Technical data for Spring washers, waved and curved

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This product is regulated by the following standards:

Standard DIN 137

Equivalent standards

UNI 8840
NF E 27620

Spring washers, waved (Type A) and curved (Type B)

Dimensions for d1 and d2 apply to plane (not domed or undulated) spring washers. Surfaces to be smooth and free of rolling defects and bur. Spring washers are supplied raw. Spring characteristics shall not be reduced by surface protections applied. The material for spring washers shall be spring steel, having a C-content of 0,3-0,45%

Dimensions in mm - source DIN 137 A
Date of publication: 1985 - Norm cancelled without replacement
Thread size	d min/nom	d1 nom	h min	h max	s nom	≈ mass in Kg x 1000 pcs (ρ=7,85 kg/dm3)
M 2	2.2	4.5	0.5	1	0.3	0.028
M 2.3
M 2.5
M 3
M 3.5
M 4
M 5
M 6
M 7
M 8
M 10

Dimensions in mm - source DIN 137 B
Date of publication: 1985 - Norm cancelled without replacement
Thread size	d min/nom	d1 nom	h min	h max	s min	≈ mass in Kg x 1000 pcs (ρ=7,85 kg/dm3)
M 3	3.2	8	0.8	1.6	0.5	0.166
M 3.5
M 4
M 5
M 6
M 7
M 8
M 10
M 12
M 14
M 16
M 18
M 20
M 22
M 24

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH,Burggrafenstraße 6, 10787 Berlin, Germany.
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Technical data for Spring washers, waved and curved

This product is regulated by the following standards:

Standard DIN 137

Standard UNI 8840

Spring washers, waved and curved

Suppliers of Spring washers, waved and curved

Manufacturer of washers, disc springs, wave spring washers, serrated safety washers, Belleville washers, serrated washers & lockrite washers.

Production and sales of disc springs, disc washers, waveform springs, diaphragm springs, special-shaped springs and other high-quality elastic components.

Manufacturer of standard and special washers

Manufacturer of precision products: retaining components, spring washers and stampings

Manufacturer of flat washers standard and specials, UNC/SAE/STD, special washers and stampings

Manufacturer of washers and stampings

Manufacturer of retaining rings and Prong T-nuts, weld nuts

Distributor specialized in rings for shafts, shim washers and disc springs

Manufacturer of retaining rings, hose clamps and wave springs

Manufacturer of retaining rings, starlock washers, toothed washers, slotted spring pins, quick fixings and special parts

Dimensions in mm - source UNI 8840 Typ A
Date of publication: 04/1985
Thread size	d min/nom	d1 nom	h min	h max	s nom
M 2	2.2	4.5	0.5	1	0.3
M 2.3
M 2.5
M 3
M 3.5
M 4
M 5
M 6
M 7
M 8