Achieve superior structural rigidity with our Reinforced Frames window fabrication screws. Specifically designed for uPVC profiles containing steel or aluminium reinforcement, these fixings feature hardened self-drilling points to penetrate metal liners effortlessly. Eliminating the need for pilot holes, they ensure a rapid, secure hold for friction stays and hardware. Corrosion-resistant and built for heavy-duty manufacturing. Shop the range for robust window assembly.