Window frame screws FFS, with flat head

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Product details	The Fischer FFS window frame screw with flat head is a special screw for economically installing window frames. After drilling, the screw can be inserted directly into solid, perforated building materials. Capless screw installation for economical installation. The small 6mm tip diameter allows for efficient series installation. The continuous thread ensures tension-free fastening of the frame into the substrate. The top-bottom thread on the screw tip and the numerous cutting notches reduce the force required to tighten the screws. The installation process can be completed without excessive effort. According to the ift Rosenheim Institute, it is suitable for fastening plastic windows into brickwork.