Featuring a unique expanded design with tapered tips, our screws ensure maximum grip by spreading out on opposite sides as you tighten the screws. Enjoy a secure hold on the wall, keeping your belongings safely stored in place. Simplify your projects with our self-drilling drywall screws that eliminate the need for pre-drilling holes. Just insert the tubes, tighten the screws, and you're all set. Whether it's mounting a TV, bicycle, cabinet, or other heavy objects, our screws offer effortless installation for your convenience. Crafted from high-quality galvanized steel, our self-drilling screws provide unparalleled durability and strength for all your installation needs. Bid farewell to flimsy plastic screws that struggle with heavy loads—rely on our robust solution for securely attaching items directly to drywall. Say goodbye to wall damage worries with our self-drilling screws that are gentle on walls and reusable. When it's time to remove them, simply pull slightly away from the wall without any drilling needed. Enjoy a hassle-free removal process without leaving holes. From home improvement projects to office settings, our screws are perfect for a wide range of applications. Whether you're hanging shelves, mirrors, or artwork, our screws provide a reliable and hassle-free mounting solution. Description: Enhance your wall mounting projects with our self drilling screws. Featuring an expanded design with tapered tips, these screws provide maximum grip for a secure hold on the wall. Say goodbye to pre-drilling holes as these innovative screws simplify installation - just insert, tighten the screws, and you're good to go. Crafted from durable galvanized steel, these screws offer unparalleled strength for heavy loads. They are wall-friendly and reusable, leaving no damage when removed. Ideal for various applications in both home and office settings, trust our screws for a reliable and worry-free installation solution. Item Name: Self Drilling Screw Material: Galvanized Manganese Steel Features: High Hardness, Rustproof, Durable, Long Lasting Size Details: Size 12*30: Expansion Tube: 3cm/1.18" (Approx.) Screw: 3.5cm/1.38" (Approx.) Size 12*40: Expansion Tube: 4cm/1.57" (Approx.) Screw: 4.5cm/1.77" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: Style 20Pcs: 20 x Self Drilling Screws Or Style 40Pcs: 40 x Self Drilling Screws Or Style 50Pcs: 50 x Self Drilling Screws