Features: With 100pcs of high strength screws and durable plastic expansion raws plugs, this set provides reliable and long lasting support for shelves, TV brackets, heavy artwork, etc Made with a galvanizedsurfaces, our masonry screws are resistant to rust, corrosion, and oxidation, while the expansion wall plugs offer excellent toughness and durability. Whether you are a DIY enthusiast or a professional contractor, this screws and wall plugs set is perfect for anyone in need of secure and stable installation solution. From solid brick to gypsum boards, our versatile screws and wall plugs set can be used on various wall materials, making it for hardware, kitchen tool, electrical equipment, and more. Say goodbye to wobblyshelves and unstable fixtures! Our screws and wall plugs set ensures a safe and stable connection, providing peace of mind for all your installation need Specifications: Material: ppandzinc alloy Pipe outer diameter: 6mm/Pipe inner diameter: 4.5mm/Pipe length 40mm/Screw diameter: 4mm/Screw diameter: 4mm/Matching drill bit: 6mm/Screw length: 40mm Package Includes: 100pcs Small Expansion Screws note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.