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

Leading manufacturer of stainless steel washers and compensation rings for ball bearings. Standard and special parts.

Manufacturer of circlips DIN 471, 472

Distributor of bushings, wave rings and washers

Manufacturer of rings, rings for radial assembly, rings for compensating axial play, uniform section snap rings, push-on fix/grip rings, wire rings, shim and support rings ISO/TS 16949:2002

Biggest factory in China producing stainless steel washers. Fat washers, spring washers, tooth lock washers and stamping parts. Materials: 316L ,316S33,1.4462.

Manufacturer of blind rivets, solid rivets, fully tubular rivets, semi tubular rivets, bifurcated rivets

Distributor of retaining rings, Spiral retaining rings, wave springs, Disc springs, Washers, Elastic pins, Pins, Keys, Ground flat/bar stocks, Locking nuts, washers, Miniplast plastic parts, Metallic screws, nuts, bolts.

Manufacturer of spring, plain, and waved washers

Distributor of retaining rings, snap rings

Manufacturer of spring washers and rings, stampings

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