Skip
 Home Product norms DIN 7504
Send your request for quotation

DIN 7504 Standard Dimensions for Self-drilling screws, hexagon washer head with tapping thread

Stock / Supplier search Send your request for quotation
This norm has been cancelled

Self-drilling screws with tapping screw thread

This International Standard specifies the properties of heat treated screws with a tapping screw thread in accordance with ISO 1478, and which are designed with a drilling point which automatically drills the core hole for the screw during assembly

Dimensional Drawing and Technical Diagrams

775_ANl3y1_zyro-image.png

Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 7504 type K

Publication date: 09/1995 Supersedes DIN 7504: 02/1992
Ø thread size P h min k max k min dc min dc max s min s max dp max
ST 2.9 1.1 0.4 2.8 2.5 5.8 6.3 3.82 4 2.3
ST 3.5 1.3 0.6 3.4 3 7.6 8.3 5.32 5.50 2.8
ST 3.9 1.3 0.6 3.4 3 7.6 8.3 5.32 5.50 3.1
ST 4.2 1.4 0.8 4.1

3.6

 8.1 8.8 6.78 7 3.6
ST 4.8 1.6 0.9 4.3 3.8 9.8 10.5 7.78 8 4.1
ST 5.5 1.8 1 5.4 4.8 10 11 7.78 8 4.8
ST 6.3 1.8 1 5.9 5.3 12.2 13.5 9.78 10 5.8

Dimensions in mm - source DIN 7504 type L

Publication date: 09/1995 Supersedes DIN 7504: 02/1992
Ø thread size P h min k max k min dc min dc max s min s max n min n max t min dp max
ST 2.9 1.1 0.4 2.8 2.5 5.8 6.3 3.82 4 0.86 1 0.35 2.3
ST 3.5 1.3 0.6 3.4 3 7.6 8.3 5.32 5.50 1.06 1.2 0.43 2.8
ST 3.9 1.3 0.6 3.4 3 7.6 8.3 5.32 5.50 1.06 1.2 0.43 3.1
ST 4.2 1.4 0.8 4.1

3.6

 8.1 8.8 6.78 7 1.26 1.51 0.51 3.6
ST 4.8 1.6 0.9 4.3 3.8 9.8 10.5 7.78 8 1.26 1.51 0.51 4.1
ST 5.5 1.8 1 5.4 4.8 10 11 7.78 8 1.66 1.91 0.66 4.8
ST 6.3 1.8 1 5.9 5.3 12.2 13.5 9.78 10 1.66 1.91 0.66 5.8

Dimensions in mm - source DIN 7504 type N

Publication date: 09/1995 Supersedes DIN 7504: 02/1992
Ø thread size P k max k min dk min dk max dp max
ST 2.2 0.8 1.6 1.4 3.7 4 2.3
ST 2.9 1.1 2.4 2.15 5.3 5.6 2.8
ST 3.5 1.3 2.6 2.35 6.64 7 3.1
ST 4.2 1.4 3.1 2.8 7.64 8 3.6
ST 4.8 1.6 3.7 3.4 9.14 9.5 4.1
ST 5.5 1.8 4 3.7 10.57 11 4.8
ST 6.3 1.8 4.6 4.3 11.57 12 5.8

Dimensions in mm - source DIN 7504 type P

Publication date: 09/1995 Supersedes DIN 7504: 02/1992
Ø thread size P k max dk min dk max dp max
ST 2.2 0.8 1.1 3.5 3.8 2.3
ST 2.9 1.1 1.7 5.2 5.5 2.8
ST 3.5 1.3 2.35 6.9 7.3 3.1
ST 4.2 1.4 2.6 8 8.4 3.6
ST 4.8 1.6 2.8 8.9 9.3 4.1
ST 5.5 1.8 3 9.9 10.3 4.8
ST 6.3 1.8 3.15 10.9 11.3 5.8

Dimensions in mm - source DIN 7504 type R

Publication date: 09/1995 Supersedes DIN 7504: 02/1992
Ø thread size P k max dk min dk max dp max
ST 2.2 0.8 1.1 3.5 3.8 2.3
ST 2.9 1.1 1.7 5.2 5.5 2.8
ST 3.5 1.3 2.35 6.9 7.3 3.1
ST 4.2 1.4 2.6 8 8.4 3.6
ST 4.8 1.6 2.8 8.9 9.3 4.1
ST 5.5 1.8 3 9.9 10.3 4.8
ST 6.3 1.8 3.15 10.9 11.3 5.8

Drilling depth and grip length
Thread size ST2,9 ST3,5 ST3,9 ST4,2 ST4,8 ST5,5 ST6.3
drilling depth (sheet,plate,thickness), from-to: 0.7-1.9 0.7-2.25 0.7-2.4 1.75-3 1.75-4.4 1.75-5.25

2-6
Nominal size Minimum grip length, lg
9.5 3.25 2.85
13 6.6 6.2 5.8 4.3 3.7
16 9.6 9.2 8.8 7.3 5.8 5
19 12.5 12.1 11.7 10.3 8.7 8 7
22 15.1 14.7 13.3 11.7 11 10
25 18.1 17.7 16.3 14.7 14 13
32 24.5 23 21.5 21 20
38 30.5 29 27.5 27 26
45 34.5 34 33
50 39.5 39 38

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.
WARNING - The datasheets provided by this site (fasten.it) are only advisory in support of the commercial activity and their use by anyone is entirely voluntary. Reliance on their contents for any purpose by anyone is at his/her sole risk and Fasten.it s.r.l./www.fasten.it is not responsible for any loss, claim or damage arising there from.