Rawlplug RAW07015 Nylon Self-Drill Plasterboard Fixing Pack of 12 The Rawplug Nylon Self-Drill Plasterboard Fixings require no drilling simply pierce plaster and screw home. The nylon insulates against accidental electrical contact with a choice of panhead or countersink screws flush fit finish. The Screw and fixture can be removed and re-used. (e.g. When decorating). Maximum Fixture Thickness: 12mm Pack of 12.