These Forgefix Cavity Wall Plugs are made from Zinc alloy and have a specially designed cutting tip to pierce the plasterboard skin. Cavity Fixing Plugs are an easy to use fixing for plasterboard and hollow wall applications. They are supplied complete with a Pozi compatible screw, and the countersunk head feature on the plug allows flush fitting of the screw to the plasterboard. The screw and fixture can be removed for cleaning and decoration. Alternative screws can be used if required for different fixtures. APPLICATION: Ideal when re-fixing into existing plug or anchor holes. Cavity Wall Zinc Speed Plug Screw 4.5mm Bag 25.