Corefix Air Heavy Duty Dryline Wall Fixing for Aircrete Blocks, 24 Pack - 

Fixing to drylined walls has long been problematic. Corefix provides a reliable solution for fixing heavy items to plasterboard supported on battens or dot and dab, or similar substrates. In drylined wall construction the plasterboard is selectively supported, resulting in a void behind the majority of the plasterboard. A conventional expansion plug and screw or frame fixing will typically impart a compressive point load which can deflect or crush the plasterboard into the void. Corefix prevents this issue by transferring the load directly to the solid masonry by way of the steel insert.