| 摘要 |
Device (10) for fastening in different building materials like wood, particle boards, plaster, brick walls, concrete and the like, wherein a drilled hole is used, comprising a screw with threads (16) and screw head (14), a cylindrical conical section (17), and a nut (20) with fastening devices (21). The device (10) will prvide a robust and safely anchor point in different building materials.
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