Dvonavojni vijak 300

The most frequently chosen place for installing photovoltaic panels is the roof of a building.To properly install the power plant on the roof, you must choose the appropriate panel mounting system.There are different installation systems for flat roofs and different ones for sloping roofs.In the case of pitched roofs, the team deals with various roof structures and coverings.The most commonly used roof coverings in Poland include: metal roofing tiles, ceramic roof tiles, concrete roof tiles, trapezoidal sheet metal, seam, and bituminous shingles.Each of the indicated roof coverings is characterized by an appropriate installation system for the photovoltaic installation.What they have in common is strict adherence to the installation instructions for a given system.

When to use screw dwugwintową 300?

The double-threaded screw is used to fasten aluminum mounting profiles of photovoltaic installations and solar collectors on sloping roofs covered with metal roofing tiles, roofing felt or shingles.Roofs covered with metal tiles are very popular and generally do not cause any major problems when installing photovoltaic panels.It is important to ensure good sealing at the junction between the metal roofing tile and the screw.In addition to the screw sealant supplied with the screw, it is a good idea to use roofing paste to make sure there is no water leakage.

What does the roof photovoltaic installation system consist of?

The mounting system on metal roof tiles consists of several elements: a double-threaded screw, a mounting adapter, a rail, rail connectors, middle and end clamps, and screws and nuts.After carefully measuring where the screws will be located, they are reamed and then the double threaded screw is screwed in.The screw contains a gasket which, when tightened, seals the connection point with the metal roofing tile.

Technical parameters 

The double-threaded screw 300 has the following technical data:

material: stainless steel,

%p8/ % height: 300 [mm],

diameter: 9 [mm],

thread length M10: 170 [mm] ,

rafter thread length: 90 [mm],