Gyproc Nailable Plug is a combination of a nail and a plastic wall fitting in one. This product is for use with fixing Gyproc ThermaLine insulated plasterboards. It has an expanding tip which allows for better grip within masonry walls. This Plus is available in either 60mm or 110mm . Use Gyproc ThermaLine Basic Insulated Plasterboard for a modest upgrade in thermal insulation in bedrooms. For a higher thermal insulation quality, use Gyproc ThermaLine Super which uses a phenolic foam backing to provide fire resistance. For any further information on these products, please speak to a member of our qualified team today.