• Set of 20 metal anchors for cavities M5 × 25 • The package includes 20 petal nuts, 20 round head screws, and 20 iron expansion screws • The special design of the petal nut allows for strong mechanical clamping force during installation, achieving effective fastening of objects even under vibrations or heavy loads • Compatible with various surfaces such as concrete, brick walls, and stone • Usable for securing machinery, heavy equipment, lamps, shelves, and other objects that require secure fastening • Made of high-strength alloy steel, they offer excellent resistance to corrosion and aging, maintaining their structural integrity under demanding conditions and reducing the need for frequent replacement