Fischer 573429 Concrete screw 50 mm TX 100 pc(s)

These sheet metal screws are threaded fasteners intended to join metal components by cutting their own mating thread as they are driven in. Installed using a TX30 bit, the screw converts torque into axial advance while the pan head bears against the workpiece to prevent pull‑through. Corrosion protection on the stainless material slows surface degradation where moisture or weather exposure occurs. Typical use covers metal-to-metal fastening in fabrication and assembly tasks where a compact head and reliable thread engagement are required; installation is normally performed with a controlled torque driver to ensure consistent clamp and avoid overtightening.