Reverse Screw Express for heavy loads, with a single base, made of white galvanized carbon steel. Suitable for substrates: unbreakable, reinforced or non-reinforced standard concrete of at least C20/25 class and natural stone with a solid structure (without technical approval).

Advantages - Features:

• The diameter of the threaded screw is equal to the diameter of the screw, providing significantly higher strength compared to screws with a sleeve of the same size.
• Very quick installation, suitable for serial fastening with a large number of screws.
• Selected sizes with cold-formed screw, offering higher hardness and steel strength, ensuring precise execution.
• Time-saving and convenient installation through fastening.
• The thread length appropriately matches the overall length of the screw.
• Optimal base geometry - secure fastening even in lower quality concrete.
• Smooth screw head - protection from thread damage during installation.
• Rounded expansion cone at the bottom - easier installation, especially through wooden elements.
• Special thickening on the screw holding the base in the correct position, even when encountering reinforcement or gaps in the substrate.
• Very wide range of sizes - capable of fastening even very thick elements.
• Also available in stainless steel (A2) and corrosion-resistant steel (A4) versions.
• Technical approval from the Institute of Building Materials Research (ITB) with number AT-15-8190/2014.