Self-drilling bi-metal hexagonal-head sheet-metal screw, stainless, A2, 6,0 × 25mm

Bi-metallic sheet metal screws are a special screw used in the solar industry, among others, which have excellent properties due to their complex structure and material quality. These bolts are ideal for applications such as fixing solar panels to aluminium rails and other building structures where durability and corrosion resistance are key.

Bi-metallic sheet metal screws are a combination of two different materials. In these screws, the A2 grade stainless steel body is welded to a hardened carbon steel tip. The screws are particularly suitable for drilling through materials such as aluminium and sheet steel. They combine the advantages of stainless steel with lightweight yet robust self-drilling capability, guaranteeing fast, efficient and long-lasting installation. The special thread geometry of the screw allows fast and chip-free fastening in the sheet metal, while at the same time ensuring high load-bearing capacity of the connection. No cutting material is produced during chipless drilling, which helps prevent rusting in the installation area. In addition, the screw has a stainless steel washer and a vulcanised EPDM layer that not only seals the installation space but also prevents water ingress through the fixing hole.

Self-drilling plate screws are direct fixing accessories for the installation of solar panels, combining a bi-metal thin plate screw and a vulcanised EPDM stainless steel A2 washer. This combination makes them suitable for various applications in the solar industry, ensuring a safe and durable installation. Their specialised design and material composition make them an excellent choice for reliable and long-lasting solar installations. These bolts are well suited for the solar industry, considering durability, resistance to environmental factors, and secure fastening of the various components of solar panel systems.

The hex head design of the bolts makes for quick and easy insertion and removal, while the self-drilling threads eliminate the need for pre-drilling, making the job easier. These features result in significant time savings and reduce workflow complexity.

Bi-metal plate screws have a number of advantages that make them easier to use and increase their efficiency. Firstly, there is no need for pre-drilling, as the threading and fixing is done in a single step, allowing you to fix thin sheets easily and firmly. This is particularly ideal for fixing rails to sandwich panels, for example. Secondly, self-drilling screws do not require the use of a self-drilling tip, as the needle-pointed hardened steel tip easily penetrates the plates without the need for a drill bit. Thirdly, the hardened tip forms a thread in the plate without chipping, to which the stainless steel screw body is easily and tightly fixed, ensuring the stability of the structure.