Technical History and International Equivalents of DIN EN ISO 15480

Hexagon washer head drilling screws with tapping thread

This standard (DIN EN ISO 15480 and equivalents) specifies the characteristics of hexagon washer head drilling screws with tapping thread from ST2,9 to ST6,3 included.

The self drilling screws are mainly used for fastening sheet metals without a previous hole and are the screws themselves which bore into the sheets and subsequently fasten both plates.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN EN ISO 15480

Publication date: 10/2019 Supersedes DIN EN ISO 15480 : 02/2000
d thread size P dc max dc min k nom=max c min s nom=max
ST2.9 1.1 6.3 5.8 2.8 0.4 4
ST3.5 1.3 8.3 7.6 3.4 0.6 5.5
ST4.2 1.4 8.8 8.1 4.1 0.8 7
ST4.8 1.6 10.5 9.8 4.3 0.9 8
ST5.5 1.8 11 10 5.4 1 8
ST6.3 1.8 13.5 12.2 5.9 1 10

Dimensions in mm - source DIN EN ISO 15480

Publication date: 02/2000 Supersedes DIN 7504 K : 09/1995
d thread size P dc max dc min k nom=max c min s nom=max e min drilling range
ST2.9 1.1 6.3 5.8 2.8 0.4 4 4.28 0.7÷1.9
ST3.5 1.3 8.3 7.6 3.4 0.6 5.50 5.96 0.7÷2.25
ST4.2 1.4 8.8 8.1 4.1 0.8 7 7.59 1.75÷3
ST4.8 1.6 10.5 9.8 4.3 0.9 8 8.71 1.75÷4.4
ST5.5 1.8 11 10 5.4 1 8 8.71 1.75÷5.25
ST6.3 1.8 13.5 12.2 5.9 1 10 10.95 2÷6