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FASTENING SYSTEMS

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BILKA fastening systems are protected with anti-rust layers, ramoving thus the risk of corrosion on the metal cladding applied to the building. Depending on the work, self-drilling screws for the roof can be chosen, panels and other metal construction with mounting on wood or metal. Screws are available in different RAL colors.

Dimension
(DxL mm)
Drilling capacity
(mm)
Hexagon head
(mm)
Use
4,8 x 19 3 8 Metal fastening on metallic support
4,8 x 35 1,25 8 Metal fastening on wooden support
4,8 x 25 1,25 8 Metal fastening on wooden support
4,8 x 55 1,25 8 Metal fastening on wooden support
4,8 x 70 1,25 8 Metal fastening on wooden support
4,8 x 20 3 8 Metal sheet fastening on metallic support
5,5 x 25 5 8 Metal sheet fastening on metallic support
5,5 x 38 12 8 Metal sheet fastening on metallic support
5,5 x 60
5,5 x 80
5,5 x 100
5,5 x 120
5 8 Insulating panels fastening on metal support
5,5 x 140
5,5 x 70
5,5 x 90
5,5 x 110
5,5 x 130
5,5 x 150
5,5 x 190
5,5 x 220
5,5 x 250
12 8 Insulating panels fastening on metal support