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DIN 7972 Standard Dimensions for Tapping screws, countersunk slotted flat head

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Technical History and International Equivalents of DIN 7972

This norm has been cancelled
This norm has been replaced by DIN EN ISO 1482

Tapping screws, countersunk slotted flat head

Dimensional Drawing and Technical Diagrams

1757_3745.jpg

Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 7972Withdrawn

Publication date: 08/1990
Ø
 P
dk max
 dk min
k
t max
 t min
n max
 n min
ST 2.2
 0.8 4.3 4 1.3 0.6 0.4 0.6 0.66
ST 2.9
 1.1 5.5 5.2 1.7 0.75 0.5 0.8 0.86
ST 3.5
 1.3 6.8 6.44 2.1 0.95 0.6 1 1.06
ST 3.9
 1.3 7.5 7.014 2.3 1.05 0.7 1 1.06
ST 4.2
 1.4 8.1 7.74 2.5 1.15 0.75 1.2 1.26
ST 4.8
 1.6 9.5 9.14 3 1.35 0.85 1.2 1.26
ST 5.5
 1.8 10.8 10.37 3.4 1.5 1 1.6 1.66
ST 6.3
 1.8 12.4 11.97 3.8 1.75 1.2 1.6 1.66

DIN 7972 - ≈ weigth, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial lengths
thread size ST 2 ST 2.9 ST 3.5 ST 3.9 ST 4.2 ST 4.8 ST 5.5 ST 6.3
nominal length l
6.5 0.14 0.242
9.5 0.2 0.35 0.548 0.858 0.775 1.10
13 0.27 0.476 0.722 0.88 1.02 1.45 2.11 2.53
16 0.33 0.584 0.871 1.07 1.23 1.75 2.9 3.07
19 0.692 1.02 1.26 1.44 2.05 2.87 3.61
22 1.17 1.45 1.65 2.35 3.26 4.15
25 1.32 1.64 1.86 2.65 3.65 4.69
32 2.35 3.35 4.56 5.95
38 3.95 5.34 7.03

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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