Technical data for Single coil spring square washers for screws with cylindrical heads

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This product is regulated by the following standards:

Standard DIN 7980

Attention

This standard has been withdrawn

Single coil spring square washers for screws with cylindrical heads

Dimensions in mm - source DIN 7980 - Withdrawn
Publication Date: 10 - 1987 Supersedes DIN 7980 : 12-1972
Thread size	d1 min	d2 max	s	h	b	≈ weight in kg x1000 pcs
M 3	3.1	5.6	1	2	1	0.105
M 3.5
M 4
M 5
M 6
M 8
M 10
M 12
M 14
M 16
M 18
M 20
M 22
M 24
M 27
M 30

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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Thread size	d1 min	d2 max	b min	b max	s min	s max
M 3	3.1	5.5	1.2	1.4	0.7	0.9
M 3.5	3.6	6	1.2	1.4	0.7	0.9
M 4	4.1	6.95	1.4	1.6	0.8	1
M 5
M 6
M 8
M 10
M 12
M 14
M 16
M 18
M 20
M 22
M 24
M 27
M 30
M 33
M 36
M 39
M 42
M 45
M 48


Thread size	d1 min	d2 max	k	b min	b max	s min	s max	h=(2s+2k)±15%
M 3.5	3.6	6.6	0.15	1.2	1.4	0.7	0.9	1.9
M 4	4.1	7.55	0.15	1.4	1.6	0.8	1	2.1
M 5	5.1	9.15	0.15	1.7	1.9	1.1	1.3	2.7
M 6
M 8
M 10
M 12
M 14
M 16
M 18
M 20
M 22
M 24
M 27
M 30
M 33
M 36
M 39
M 42
M 45
M 48

Technical data for Single coil spring square washers for screws with cylindrical heads

This product is regulated by the following standards:

Standard DIN 7980

Standard BS 4464 A

Standard BS 4464 B

Standard BS 4464 BP

Single coil spring square washers for screws with cylindrical heads

Suppliers of Single coil spring square washers for screws with cylindrical heads

Producer of spring lock, toothed and special washers. Quality Certificates: ISO 9001; ISO 14001; ISO/TS 16949

Specialised producer of split spring washers and toothed washers

Manufacturer of washers in stainless steel: flat, spring, toothed, wave

Manufacturer of spring washers and cotter pins

Manufacturer of spring, plain, and waved washers

Manufacturer specialized in spring washers in different materials, also with double rings

Manufacturer of lock washers, flat washers, spring and tab washers

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

Manufacturer of spring lock washers and shakeproof washers. Metric and imperial sizes. Production of wire for spring and retaining rings.

Manufacturer of washers

Dimensions in mm - source BS 4464 Table A
Publication Date: 05/1969