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Dimensions in mm - source DIN 7971 Withdrawn Publication date: 08 - 1990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Dimensions in mm - source UNI 6951 Withdrawn Publication date: 11-1978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

Jiaxing Haina Fasteners is a stainless steel fastener supplier. We have a large Stock. The materials include A2 A4, 316Ti, 904L, 2205 and 2507. Our main products are bolts, nuts, screws, threaded bars, washers

Company specialized in the production of fasteners and fixings for industrial applications in the following fields: automotive, home appliances, mechanical, components, building industry. Leader in the manufacturing of special fasteners.

Company leader in the commerce of nuts, bolts. Range of more than 100.000 products such as screws, bolts, technical articles, industrial wheels, Tie rods for ropes and tools.

Manufacturer specialized in self tapping and machine screws. Diameters: M2-M10 Lengths: 4-220 mm

Manufacturer of special screws, cold forged. Self tapping screws, for plastic and wood

Producer of special screws for plastic, thread-ridging screws

Manufacturer and distributor of wood screws, chipboard screws, drywall screws, self drilling, thread rolling and self tapping screws. Metric and inch sizes.

Distributor of hex lag screws, chipboard screws, carpentry screws, drywall screws, concrete screws, PVC windows screws, dome and euro screws, metric screws, nuts/washers/bolts/threaded rods, self-tapping screws, self-drilling screws, stainless steel 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