Screw nail dowel TPS-5/20x50 nat (100) Application: Dowel with screw nail for fastening channels, clamps, switches as well as window and door frames, lath dowels, are suitable for concrete, natural stone, aerated concrete, lightweight clinker, hollow blocks, hollow bricks, solid bricks and plasterboard / Advantage: no marking of the hole as the dowel is inserted through the workpiece to be fastened, quick assembly, fastening by hammering in the screw nail, loosening of the fastening by unscrewing the screw nail / Material: Dowel is made of PA (polyamide), screw nail made of steel, temperature range: -40 to + 80°C