General description Onduline 65mm Screws are specifically designed for fastening bitumen corrugated roofing sheets to various roofing substrates. These screws help secure the sheets, edges, and ridges in place, ensuring a uniform look on your roof while providing excellent waterproof capabilities to prevent leaks and water damage. They are ideal for use on sheds, garages, garden outbuildings, and agricultural buildings. Technical specifications Length: 65mm Width: 35mm Material: High-quality steel Available colors: Black, Green, Red, Brown, Grey Bag quantity: 100 screws Effective length: 65mm Compatible with 2.6mm and 3mm thick corrugated bitumen sheets Usage These screws are lightweight and easy to install, making them a practical choice for securing bitumen roofing sheets effectively.