Technical data for Tapping screws, slotted pan head

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This product is regulated by the following standards:

Standard DIN EN ISO 1481

Equivalent standards

UNI EN ISO 1481
NF EN ISO 1481

Tapping screws, slotted pan head

This standard DIN EN ISO 1481 specifies the characteristics of slotted pan head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.

Dimensions in mm - source DIN EN ISO 1481
Publication date: 10/2011 Supersedes DIN 1481 08/1990
Ø	P	dk min	dk max	k min	k max	t min	n nom	y form C	y form F
ST 2.2	0.8	3.7	4	1.3	1.1	0.5	0.5	2	1.6
ST 2.9
ST 3.5
ST 4.2
ST 4.8
ST 5.5
ST 6.3
ST 8
ST 9.5

DIN 1481 - commercial lengths
thread size	ST 2.2	ST 2.9	ST 3.5	ST 4.2	ST 4.8	ST 5.5	ST 6.3	ST 8	ST 9.5
nominal length l
4.5	X
6.5
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Dimensions in mm - source DIN 7971 Withdrawn Publication date: 08 - 1990
Ø	P	dk max	dk min	k max	k min	t max	t min	n max	n min	Y form C	Y form F
ST 2.2	0.8	4.2	3.9	1.35	1.15	0.8	0.55	0.8	0.66	2	1.6
ST 2.9	1.1	5.6	5.3	1.75	1.5	1	0.75	1	0.86	2.6	2.1
ST 3.5
ST 3.9
ST 4.2
ST 4.8
ST 5.5
ST 6.3

Dimensions in mm - source UNI 6951 Withdrawn Publication date: 11-1978
Ø	P	dk max	dk min	k max	k min	t max	t min	n max	n min	Y form C	Y form F
ST 2.2	0.8	4.2	3.9	1.35	1.15	0.8	0.55	0.8	0.66	2	1.6
ST 2.9	1.1	5.6	5.3	1.75	1.5	1	0.75	1	0.86	2.6	2.1
ST 3.5
ST 3.9
ST 4.2
ST 4.8
ST 5.5
ST 6.3

Technical data for Tapping screws, slotted pan head

This product is regulated by the following standards:

Standard DIN EN ISO 1481

Standard DIN 7971

Standard UNI 6591

Standard BS 4174 16

Tapping screws, slotted pan head

Suppliers of Tapping screws, slotted pan head

Manufacturer of self drilling screws, self tapping screws, chipboard screws, bi-metal self drilling screws, HI-Lo concrete screws, nail plugs, caps, gaskets, fixings for photovoltaic panels

Distributors of window and PVC screws, wood and plastic screws with patent

Manufacturer of special fasteners for household appliances

Manufacturer of self drilling screws, drywall screws, tapping screws, concrete nails, wood screws

Manufacturer of standard fasteners and fasteners according to drawing

Manufacturer of screws for Household Appliances, Automotive, Construction, and Furniture sectors

Producers of screws from Ø 1,6 to Ø 8 maximum length 90 mm. Wide range of threads, heads and materials. Metric threads, ISO, AMERICAN ASA (UNC) - ASA (UNF), WHITWORTH. SPECIAL CUSTOM-MADE SCREWS.

Manufacturer of fixings for wood, roofing and iron

Producer of selftapping and machine screws, chip board screws, EURO screws, screws for wood and plastic materials, trilobular fasteners

Manufacturer of solid, semi-tubular, hollow rivets and self tapping screws

DIN 7971 - ≈ 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
4.5	0.174
6.5
9.5
13
16
19
22
25
32
38

UNI 6951 - ≈ 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
4.5	0.174
6.5
9.5
13
16
19
22
25
32
38

Dimensions in mm - source BS 4174 Table 16 Slotted pan head self tapping screws
Publication date: 09/1972
Ø	dk min	dk max	k min	k max	t nom	n min	n max	r
ST 2.2	3.94	4.24	1.14	1.35	0.68	0.58	0.79	0.89
ST 2.9
ST 3.5
ST 4.2
ST 4.8
ST 5.5
ST 6.3
ST 8