Screws Screws are the most commonly used fasteners in plasterboard constructions. Different types are available depending on the specific purpose - the combination of the element to be attached and the material of substrate. TN Profifix self-tapping screws TN Profifix coll. tape drywall screw - 0,7mm metal TX Profifix wood screws TX Profifix coll. tape drywall screw – wood TB Profifix self-tapping screws FN Profifix wood screw TEX Profifix self-tapping screws