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UNI 7687 Standard Dimensions for Pan head machine screws with cross recess

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This norm has been cancelled

Recessed raised cheese (fillister) head screws. ISO metric coarse thread. Product grade A.

Dimensional Drawing and Technical Diagrams

1173_K1ZRtY_DIN 7985.png

Key Dimensions and Technical Parameters

Dimensions in mm - source UNI 7687Withdrawn
Publication date: 10 -1977
d thread size
P
 dk nom=max k min k max
recess No.
m Type H ref.
m Type Z ref.
M 2
 0.4 4 1.48 1.72
1
 2.5 2.11
M 2.5
 0.45 5 1.88 2.12
1
 2.7 2.9
M 3 0.5 6 2.28 2.52
1
 3.1 3.15
M 3.5
0.6
 7 2.58 2.82
2
 4.2 3.91
M 4
0.7
 8 2.95 3.25
2
 4.6 4.29
M 5
0.8
 10 3.65 3.95
2
 5.3 4.7
M 6
1
 12 4.45 4.75
3
 6.8 6.73
M 8
1.25
 16 5.85 6.15
4
 9 8.46
M 10
1.5
 20 7.32 7.68
4
 10.2 10

UNI 7687 - ≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial items
d thread size M 2 M 2.5 M 3 M 4 M 5 M 6 M 8 M 10
nominal length l
3 0.137 0.34
4 0.155 0.37 0.621
5 0.173 0.4 0.666 1.4
6 0.191 0.43 0.71 1.48 2.66
8 0.228 0.49 0.798 1.63 2.91
10 0.267 0.55 0.876 1.79 3.16 5.14 10.9
12 0.304 0.61 0.954 1.94 3.41 5.49 11.5 21.2
14 0.341 0.67 1.03 2.1 3.66 5.84 12.2 22.2
16 0.378 0.73 1.11 2.25 3.91 6.19 12.8 23.2
20 0.85 1.27 2.56 4.41 6.89 14.2 25.2
25 1 1.47 2.94 5.03 7.77 15.8 27.7
30 1.18 1.71 3.44 5.7 8.64 17.5 30.2
35 3.94 6.5 9.52 19.1 32.7
40 4.44 7.18 10.5 20.7 35.7
45 7.93 11.4 22.3 37.7
50 8.7 12.3 23.9 41.2

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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