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DIN 7983 Standard Dimensions for Tapping screws, cross recessed oval head

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Technical History and International Equivalents of DIN 7983

This norm has been cancelled
This norm has been replaced by DIN EN ISO 7051

Tapping screws, cross recessed oval countersunk head

Dimensional Drawing and Technical Diagrams

1761_3753.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 7983Withdrawn

Publication date: 08/ 1990
Ø thread size
P
dk max.
 dk min f
k max.
recess Nr.
 m type H m type Z
y type C
y type F
2.2
0.8
 4.3 4 0.7 1.3 1 2.8 2.4
2
1.6
2.9
1.1
 5.5 5.2 0.9 1.7
1
 3.4 3.1
2.6
2.1
3.5
1.3
 6.8 6.44 1.2 2.1
2		 4.6 4.3
3.2
2.5
3.9 1.3 7.5 7.14 1.3 2.3 4.7 4.4 3.5 2.7
4.2
1.4
 8.1 7.74 1.4 2.5 4.9 4.6 3.7 2.8
4.8
1.6
 9.5 9.14 1.5 3 5.4 5.1
4.3
 3.2
5.5
1.8
 10.8 10.37 1.7 3.4
3
 7 6.6
5
3.6
6.3
1.8
 12.3 11.97 2 3.8 7.4 7.1 6
3.6

DIN 7983 - ≈ weight in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial sizes
d thread size ST 2.2 ST 2.9 ST 3.5 ST 3.9 ST 4.2 ST 4.8 ST 5.5 ST 6.3 ST 8 ST 9.5
nominal length l
4.5 0.18 0.332
6.5 0.24 0.44 0.721 0.888 1.07 1.53
9.5 0.31 0.566 0.898 1.11 1.32 1.88 2.74 3.46
13 0.37 0.674 1.05 1.3 1.53 2.18 3.12 4
16 0.782 1.2 1.49 1.74 2.48 3.51 4.45
19 1.35 1.68 1.95 2.78 3.89 5.08
22 1.51 1.87 2.16 3.08 4.28 5.62
25 2.65 3.78 5.19 6.88
32 5.97 7.96
38
45
50

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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