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DIN 920 Standard Dimensions for Slotted pan head screws with small head

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This standard DIN 920 specifies the characteristics of slotted pan head screws with small head for thread sizes M1 to M10 for forms A and B and product grades F and A.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 920
Publication date: 06 - 2012 - Supersedes DIN 920: 08-2006
d thread size P pitch a max b dk nominal size ds nominal size k n t
max min min max min max
M 1 0.25 0.5 - 1.6 - 0.82 0.58 0.26 0.4 0.35 0.5
M 1.2 0.25 0.5 - 1.8 - 0.92 0.68 0.31 0.45 0.4 0.55
M 1.4 0.3 0.6 - 2 - 1.02 0.78 0.31 0.45 0.45 0.6
M 1.6 0.35 0.7 5 2.3 1.6 1.12 0.88 0.36 0.5 0.5 0.7
M 2 0.4 0.8 6 2.8 2 1.32 1.08 0.36 0.5 0.6 0.8
M 2.5 0.45 0.9 7.5 3.5 2.5 1.62 1.38 0.46 0.6 0.75 0.95
M 3 0.5 1 9 4 3 1.92 1.68 0.56 0.7 0.9 1.15
M 4 0.7 1.4 12 5.5 4 2.52 2.28 0.66 0.8 1.2 1.5
M 5 0.8 1.6 15 6.5 5 2.82 2.58 0.86 1 1.3 1.6
M 6 1 2 18 8 6 3.25 2.95 1.06 1.2 1.5 1.9
M 8 1.25 2.5 24 10 8 3.95 3.65 1.26 1.51 1.9 2.4
M 10 1.5 3 30 13 10 4.75 4.45 1.66 1.91 2.3 2.8

Dimensions in mm - source DIN 920
Publication date: 08 - 2006 - Supersedes DIN 920: 09 - 1986
d thread size P b dk max=nom ds min f k nom n nom t min/max
M 1 0.25 full thread 1.6 - 0.2 0.7 0.2 0.35 0.5
M 1.2 0.25 full thread 1.8 - 0.2 0.8 0.25 0.4 0.55
M 1.4 0.3 full thread 2 - 0.25 0.9 0.25 0.45 0.6
M 1.6 0.35 5 2.3 1.46 0.25 1 0.3 0.5 0.7
M 2 0.4 6 2.8 1.86 0.3 1.2 0.3 0.6 0.8
M 2.5 0.45 7.5 3.5 2.36 0.4 1.5 0.4 0.75 0.95
M 3 0.5 9 4 2.86 0.45 1.8 0.5 0.9 1.15
M 4 0.7 12 5.5 3.82 0.6 2.4 0.6 1.2 1.5
M 5 0.8 15 6.5 4.82 0.7 2.7 0.8 1.3 1.6
M 6 1 18 8 5.8 0.8 3.1 1 1.5 1.9
M 8 1.25 24 10 7.78 0.9 3.8 1.2 1.9 2.4
M 10 1.5 30 13 9.78 1.1 4.6 1.6 2.3 2.8

Dimensions in mm - source DIN 920
Publication date: 1986
d thread size P b dk max=nom ds nom f k nom n nom t min/max
M 1 0.25 full thread 1.6 - 0.2 0.7 0.2 0.35 0.5
M 1.2 0.25 full thread 1.8 - 0.2 0.8 0.25 0.4 0.55
M 1.4 0.3 full thread 2 - 0.25 0.9 0.25 0.45 0.6
M 1.6 0.35 5 2.3 1.46 0.25 1 0.3 0.5 0.7
M 2 0.4 6 2.8 1.86 0.3 1.2 0.3 0.6 0.8
M 2.5 0.45 7.5 3.5 2.36 0.4 1.5 0.4 0.75 0.95
M 3 0.5 9 4 2.86 0.45 1.8 0.5 0.9 1.15
M 4 0.7 12 5.5 3.82 0.6 2.4 0.6 1.2 1.5
M 5 0.8 15 6.5 4.82 0.7 2.7 0.8 1.3 1.6
M 6 1 18 8 5.8 0.8 3.1 1 1.5 1.9
M 8 1.25 24 10 7.78 0.9 3.8 1.2 1.9 2.4
M 10 1.5 30 13 9.78 1.1 4.6 1.6 2.3 2.8

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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