The Phillips Pan Head Self Tapping Screw DIN 7981 is a versatile fastener commonly used in sheet metal and timber-to-metal applications. Ideal for securing materials where pre-drilling is impractical or unnecessary.
Product Data
Size
P
dk max
dk min
k max
k min
r max
ST2.2
0.8
4.2
3.9
1.8
1.55
0.3
ST2.9
1.1
5.6
5.3
2.2
1.95
0.4
ST3.5
1.3
6.9
6.54
2.6
2.35
0.5
(ST3.9)
1.3
7.5
7.14
2.8
2.55
0.5
ST4.2
1.4
8.2
7.84
3.05
2.75
0.6
ST4.8
1.6
9.5
9.14
3.55
3.25
0.7
ST5.5
1.8
10.8
10.37
3.95
3.65
0.8
ST6.3
1.8
12.5
12.07
4.55
4.25
0.9
Applications
Building Insulation: Primarily used in the installation of thermal insulation systems in residential, commercial, and industrial buildings.
External Wall Insulation: Often used in External Thermal Insulation Composite Systems (ETICS) to fix insulation boards to external walls.
Roof Insulation: Suitable for securing insulation materials on roofs to enhance energy efficiency and thermal performance.
Floor Insulation: Utilized in floor insulation systems to prevent heat loss through the flooring and improve overall energy efficiency.
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