An acid-resistant screw designed for the installation of LED profile system components. Made of A4 stainless steel, it is characterized by very high resistance to corrosion and moisture, making it suitable for use in demanding environmental conditions. The screw features a countersunk head with a PH cross recess compliant with the DIN 7982 standard, enabling quick and secure installation. It ensures durable and stable fastening of lighting system components, also in installations exposed to increased humidity or contact with corrosive factors.