Duopower dowel with screw flat countersunk head and cross footprint poly 2 support materials: concrete brick solid brick in solid brick calcium silicate solid block in lightened concrete semi-filled brick (vertically perforated), semi-solid brick (vertically perforated), calcium silicate hollow block in lightened concrete aerated concrete autoclaved (concrete concreare) plasterboard plasterboard sheets and gypsum fibre panels floor slabs hollow concrete and brick or similar natural stone chipboard full gypsum board Applications: TV shelves lighting shelves mirror cabinets mailboxes boxes picture roller blinds curtain rails washbasin fixtures plumbing and heating fittings bathroom accessories wall cabinet extractor hood Technical specifications: wood screws and chipboard - d sub s/sub/ d sub s/sub s/sub x sub x subs/sub - [mm]: 4 x 30; fixable thickness max - t sub fix/sub - [mm]: 5; hole depth min - h - [mm]: 40; imprints: pz2; hole diameter - - [mm]: 5; mounting length - l - [mm]: 25; package: 50 dowels, 50 screws;