Full Thread Half Round Head Square Neck Bolts, also known as carriage bolts or DIN 603 bolts, are a type of fastener commonly used in woodworking and metal-to-wood applications. They have a half-round head with a square neck just below the head. The square neck prevents the bolt from turning when the nut is tightened. These bolts are fully threaded, meaning the threading runs the entire length of the shank. They are typically installed into pre-drilled holes and secured with a nut on the other side. It commonly used in furniture, decking, and other woodworking projects where a smooth, finished appearance is desired.
Product Data
Specification
d
M6
M8
M10
M12
M14
M16
M20
b
L≤125
18
22
26
30
34
38
46
125≤L≤200
/
28
32
36
40
44
52
dk
max
15.10
19.10
24.30
29.30
33.60
36.60
45.60
min
13.30
17.30
22.16
27.16
31.00
34.00
43.00
K1
max
4.40
5.40
6.40
8.45
9.45
10.45
12.55
min
3.60
4.60
6.60
7.55
8.55
9.55
11.45
k
max
3.48
4.48
5.48
6.48
7.9
8.90
10.90
min
2.70
3.60
4.60
5.60
6.55
7.55
9.55
S
max
6.30
8.36
10.36
12.43
14.43
16.43
20.52
min
5.84
7.80
9.80
11.76
13.76
15.76
19.72
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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