Screw size: 52.7 mm x 8 mm; 100 pieces (50 screws, 50 rubber anchors). High-quality plastic anchor bolts with pre-drilled mounting holes for plasterboard feature high strength, high durability, excellent rust and oxidation resistance, and a long service life. They are ideal for light walls, perfect for plasterboard, and for attaching roller shutters and shelves. Their unique design prevents the anchors from penetrating the holes during installation. After receiving the goods, compare the dimensions in the picture with the actual dimensions (minor deviations are permitted), pre-drill the holes in the plasterboard, insert the plastic anchors, tighten the screws, and complete the installation.