Double-threaded screw (double thread) for mounting solar panels A 2 M12x300 PV-06-07

Mounting photovoltaic panels – reliability and durability

M12x300 stainless steel A2 double-threaded screw is a key element in the assembly of photovoltaic systems. Designed to connect panel structures to various types of roofing – from sheet metal, through shingles, to roofing felt – it provides stable and secure mounting. Its versatility will be appreciated by both installers and end-users who want to be sure that their installation will last for years.

Design and application

The screw design with two different threads allows for easy installation. One thread screws directly into the roof structure, and the other is used to attach adapters or triangles. The set includes three flange nuts and an EPDM gasket, eliminating the need for additional purchases and ensuring a tight connection. The EPDM gasket minimizes the risk of leaks at the point of contact between the screw and the roofing material.

Corrosion resistance and working conditions

Made of stainless steel A2 (1.4301), the screw is characterized by high corrosion resistance due to the chromium and nickel content in the alloy. This makes it ideal for working in harsh weather conditions – rain, snow or changing temperatures. A2 steel is also flexible and resistant to stress, which translates into long-term connection reliability. Thanks to this, it can be used in almost any environment without fear of losing its mechanical properties.

Safety and completeness

A complete set – screw, flange nuts and EPDM gasket – guarantees stable and secure mounting of photovoltaic panels. The use of an EPDM gasket additionally protects against moisture and potential damage to the roof structure. The double-threaded screw is an investment in the long-term and trouble-free operation of the photovoltaic installation.