Ideal for use in home improvement projects, these metal expansion bolts provide a secure and stable solution for hanging items on hollow walls. The nut design expands within the cavity, creating a strong hold that can support various weights. These anchors are ideal for use in plasterboard, drywall, and other hollow wall materials. Features -Color:Silver -Material:Carbon steel -Size:2.30X1.10X1.10cm/0.90X0.43X0.43in -Thread: -Outer Diamter: 8 mm -Inner Diameter: 4 mm -Robust material: constructed from carbon steel, these nut expansion screws are practical and . -ideal for hollow walls: ideal for securing various items in hollow walls, ensuring a strong and stable hold. -Expansion mechanism: the expansion nut design allows the anchor bolt to expand on both sides when the screw is tightened, enhancing grip strength -Firm fastening: the fastening components are stable and do not easily loosen, making them ideal for -Quick installation: the hollow dowels are designed for heavyduty applications and are easy to install, saving time and effort Package list: 15 x hollow door fixing anchors