According to the DIN933 standard, the diameter of the bolt ranges from M1.6 to M64, and the length ranges from 5mm to 500mm. The head of the bolt is a hexagonal head, and the thread length is 1 to 2.5 times the length of the bolt. In addition, the material of the bolt varies depending on the use. Common materials include carbon steel, alloy steel, stainless steel, etc. The surface treatment of the bolt usually includes galvanizing, nickel plating, hot-dip galvanizing, etc. to improve its corrosion resistance.
Product Data
Specification
d
k
s
l
M4
2.8
7
12-40
M5
3.5
8
12-50
M6
4.0
10
10-150
M8
5.3
13
16-200
M10
6.4
17
25-200
M12
7.5
19
25-200
M14
8.8
22
30-260
M16
10.0
24
30-280
M18
11.5
27
40-280
M20
12.5
30
40-280
M22
14.0
32
40-300
M24
15.0
36
50-300
M27
17.0
41
60-300
M30
18.7
46
70-300
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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