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NF E25-119 1 Standard Dimensions for Countersunk flat head screws with cross recess

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Screws. Cross recessed countersunk head. Product grade A. Symbol F Z.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source NF E25-119 1

Publication date: 08-1984

d thread size
P
 k nom=max dk nom=max
M 1.6
0.35
 1 3
M 2
0.4
 1.2 3.80
M 2.5
0.45
 1.5 4.70
M 3
0.5
 1.65 5.50
M 3.5
0.6
 2.35 7.30
M 4
0.7
 2.7 8.40
M 5
0.8
 2.7 9.30
M 6
1
 3.3 11.30
M 8
1.25
 4.65 15.80
M 10
1.5
 5 18.30

NF E25-119 1 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial items
d thread size M 1.6 M 2 M 2.5 M 3 M 3.5 M 4 M 5 M 6 M 8 M 10
nominal length l
3 0.058 0.101 0.176
4 0.069 0.119 0.206 0.291
5 0.081 0.137 0.236 0.335 0.573 0.825
6 0.093 0.152 0.266 0.379 0.633 0.903 1.24
8 0.116 0.193 0.326 0.467 0.753 1.06 1.48 2.38
10 0.139 0.231 0.386 0.555 0.873 1.22 1.72 2.73 5.68
12 0.162 0.268 0.446 0.643 0.993 1.37 1.96 3.08 6.32 9.54
14 0.185 0.306 0.507 0.731 1.11 1.53 2.2 3.43 6.96 10.6
16 0.208 0.343 0.567 0.82 1.23 1.68 2.44 3.78 7.6 11.6
20 0.417 0.687 0.996 1.47 2 2.92 4.48 8.88 13.6
25 0.838 1.22 1.77 2.39 3.52 5.36 10.5 16.1
30 1.44 2.07 2.78 4.12 6.23 12.1 18.7
35 2.37 3.17 4.72 7.11 13.7 21.2
40 3.56 5.32 7.98 15.3 23.7
45 5.92 8.86 16.9 26.2
50 6.52 9.73 18.5 28.8
55 10.6 20.1 31.3
60 11.5 21.7 33.8

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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