PLUG FOR FASTENING TO HOLLOW BUILDING MATERIALS AND TO SOLIDBUILDING MATERIALS

摘要

The invention relates to a plug (10) to be fastened to hollow or slab-shaped building materials. The inventive plug (10) is provided with longitudinally extending expansion limbs (18) that are interlinked by thin webs (22) that a re provided with an undulation across their periphery. The inventive design allows for the screw to be guided well and makes the plug (10) torsion-proof . Especially when fastened to hollow and slab-shaped building materials a cumbersome turning back of the plug tip (16) can be avoided when the expansi on screw is screwed in by hand. Bent slots (32) in the plug tip (16) allow for a good adaptation to screws having different diameters and different thread pitches.