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 disc springs

Manufacturer specialized in washers. Production of 200,000 washers/day. Flat, spring, toothed, square and wave washers, etc...

Manufacturer of coil springs and distributor of disc springs, circlips,retaining rings, hose clamps, tool clips, retaining pins and linch pins, push on fasteners, shims and spring washers and split key rings.

Manufacturer of washers and stamped parts in stainless steel, brass, copper, silicon bronze, aluminum

Manufacturer of snap and retaining rings, toothed washers and spring pins. Metric and inch sizes.

Distributor of washers and snap rings

Manufacturer of special washers and stampings

Manufacturer of flat, spring and toothed washers

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