High performance cavity fixings ideal for fixing heavy objects securely on soft faced partition boards plasterboard hardboard & plywood. The screw and fixture can be removed and re-used. (e.g. When moving radiators for re-decoration) using a standard slotted or pozidriv screwdriver. A special setting tool (RAWAT88) is available for fast repetitive fixing. Typical uses: Coat hooks to hollow doors shelves and bathroom accessories to standard plasterboard radiators and kitchen cabinets to double thickness and tiled plasterboard.M4 x 38mm.Drill Size. 8mmFixing Thickness 17mm Trade Pack of 20.PTDRAW41627