Technical data for Self-drilling screws with tapping thread

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This product is regulated by the following standards:

Standard DIN 7504

Attention

This standard has been withdrawn

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

Self-drilling screws with tapping thread

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
ST 4.2
ST 4.8
ST 5.5
ST 6.3

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
ST 4.2
ST 4.8
ST 5.5
ST 6.3

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
ST 4.2
ST 4.8
ST 5.5
ST 6.3

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
ST 4.2
ST 4.8
ST 5.5
ST 6.3

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
ST 4.2
ST 4.8
ST 5.5
ST 6.3

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
13
16
19
22
25
32
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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Dimensions in mm - source DIN EN ISO15482 Publication date: 02-2000 Supersedes DIN 7504 O : 09-1995
d thread size	P	k max	dk min	dk max	recess nr.	Type H m ref.	Type Z m ref.	drilling range
ST2.9	1.1	1.7	5.2	5.5	1	3.2	3.2	0.7÷1.9
ST3.5
ST4.2
ST4.8
ST5.5
ST6.3

DIN EN ISO 10666 Table 1: Case depth Publication date: 02/2000 Replaces DIN 7504: 09/1995
Thread	Case depth min	Case depth max
ST2.9 AND ST3.5	0.05	0.18
ST4.2 AND ST5.5	0.10	0.23
ST6.3


DIN EN ISO 10666 Table 2 : test data for the drilling and screwing-in-test
Thread	Thickness of test plate	Axial force	Test duration max	Rotational speed of screw under load min
ST 2,9	0,7+0,7=1,4	150	3	1800 to 2500
ST 3,5
ST 4,2
ST 4,8
ST 5,5
ST 6,3


DIN EN ISO 10666 Table 3: Test data for the drilled hole
Thread	Plate thickness mm	Hole diameter min.	Hole diameter max.
ST 2,9	1	2,2	2,5
ST 3,5
ST 4,2
ST 4,8
ST 5,5
ST 6,3


DIN EN ISO 10666 Table 4: Minimum torsional strength
Thread	Minimum torsional strength N-m
ST 2,9	1,5
ST 3,5
ST 4,2
ST 4,8
ST 5,5
ST 6,3

Technical data for Self-drilling screws with tapping thread

This product is regulated by the following standards:

Standard DIN 7504

Standard DIN EN ISO 15482

Standard DIN EN ISO 10666

Self-drilling screws with tapping thread

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