Upgrade Your Woodworking with Professional-Grade Threaded Inserts! Give your wood projects unparalleled strength and reusable threads with our 200-piece Metric Threaded Inserts Kit. Designed for the DIY enthusiast and professional alike, these hex socket drive insert nuts solve the common problem of stripped or weak screw holes in wood, providing a permanent metal thread that won't wear out. Key Advantages of Our Threaded Insert Nuts for Wood: Robust Construction: Made from color zinc-plated carbon steel, combining durability with effective corrosion resistance for long-term reliability. Unshakeable Hold: The sharp, clean external thread design ensures maximum bite into wood fibers, preventing pull-out from vibration or torque and creating a connection stronger than the wood itself. Effortless Installation: The standard hexagon socket (compatible with any hex key) and flanged design allow for quick, tool-gripping installation. Simply drill, insert, and drive—no special skills required. Exceptional Versatility: Performs flawlessly in softwoods like pine and plywood, as well as dense hardwoods and solid wood. Achieve clean, professional results in high-end furniture combinations, cabinetry, toys, and workshop fixtures. Features & Specifications: Product: Flanged Hex Socket Screw-in Threaded Inserts / Nut Inserts Material: Carbon Steel with Color Zinc Plating Drive Type: Internal Hex Socket (Hexagon Socket) Design: External Threads with Anti-Slip Flange Total Quantity: 200 Pieces Complete Package Contents (200 Pcs Total): M4 x 10mm: 50 Pcs M5 x 10mm: 50 Pcs M6 x 10mm: 30 Pcs M6 x 15mm: 20 Pcs M6 x 20mm: 15 Pcs M8 x 15mm: 15 Pcs M8 x 20mm: 10 Pcs M10 x 25mm: 10 Pcs Pro Installation Tip: For best results, always pre-drill a pilot hole matching the insert's major outer diameter. When installing in very hardwoods, a slightly larger pilot hole can make driving easier without compromising hold strength. Our Commitment to You: Your satisfaction is our priority. Should you have any questions about these hex socket screw-in nuts or their application, our customer support team is ready to assist you promptly.