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DIN 436 Standard Dimensions for Square washers for wood constructions

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Square washers for wood constructions

This standard (DIN 436) specifies the characteristics of square washers in product class C. They are used for screws and nuts for wood connections.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 436
Publication date: 05/1990 - Replaces DIN 436: 07/1974
thread size d nom=min a □ max=nom h nom Approximate weight, in kg x1000 pcs, (ρ=7,85 kg/dm3)
M 8 9 30 3 20
M 10 11 30 3 19
M 12 13.5 40 4 45.7
M 16 17.5 50 5 88.7
M 20 22 60 5 126
M 22 24 70 6 209
M 24 26 80 6 275
M 27 30 90 6 348
M 30 33 95 6 385
M 33 36 100 6 423
M 36 39 110 8 685
M 39 42 125 8 895
M 42 45 135 8 1050
M 45 48 140 8 1120
M 48 52 150 10 1600
M 52 56 160 10 1820

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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