Material: polyamide, screw nail with flat head, for subordinate fastenings in the construction, metal, sanitary and electrical sectors, for fastening light loads such as angles, plates, sheets, cable ducts and any components for non-recessed installation, can be released again using a drive in the screw head, areas of application: concrete, solid brick, solid sand-lime brick, aerated concrete, perforated brick, lightweight concrete, perforated sand-lime brick, screed, gypsum boards, temperature resistant from -40 to +150 °C, halogen-free, screw nail included