50mm – 65mm – Type 17 – Hex – With Polycarbonate Washer

The Type 17 Polycarbonate Roofing Screw is a specialized fastener designed for effortless installation in polycarbonate roofing applications. Its unique features streamline the installation process, eliminating the need for pre-drilling and ensuring a secure, watertight seal. One notable feature is the innovative cutting head, which serves a dual purpose. Firstly, it pre-drills an expansion hole of the correct size, tailored to accommodate the screw, minimizing the risk of cracking or damage to the delicate polycarbonate material. Secondly, it centers the screw, facilitating precise and accurate placement, which is crucial for maintaining the structural integrity of the roofing panels.