TOP-VIGOR 40 Pcs M5 x M8 x 8mm Stainless Steel Self-Tapping Threaded Inserts - Solid Repair Sleeves for Plastic, Aluminium & Wood

• 【High-Strength & Durable】Crafted from sturdy 303 stainless steel, these inserts resist rust, corrosion, and vibration. They create a permanent, wear-resistant thread in soft materials, ideal for repair or reinforcement
• 【Self-Tapping for Easy Installation】No tapping needed. Simply drill a hole and screw the insert in with a standard hex key. This kit provides a quick and robust solution for repairing damaged or weak threads
• 【Precise Metric Fit】Each threaded insert offers an M5 internal thread to accept standard M5 screws, and an M8 external thread for a secure fit. The package contains 40 pieces for multiple projects
• 【Reliable Fastening Solution】Strengthens assemblies and prevents thread stripping. Allows for repeated disassembly and reassembly. Check the size (M5 internal, M8 external, 8mm long) before purchase to ensure compatibility
• 【Versatile Application】Perfect for use in plastic, aluminium, soft metal, and hard wood. Commonly used in repair work, 3D printing projects, model making, automotive fixes, and household appliances

Create Strong, Lasting Threads with Ease Our self-tapping threaded inserts are designed to solve common fastening problems in soft materials. Whether you're repairing a stripped thread in an engine block, reinforcing a 3D printed part, or strengthening a joint in furniture, these stainless steel sleeves offer a professional and durable solution. Key Features & Benefits: Robust Construction: Made from 303 stainless steel, these inserts are built to last, offering excellent resistance to corrosion and wear. Simplified Installation: The self-tapping design eliminates the need for a separate tapping step. Just drill, then screw the insert directly into place. Wide Material Compatibility: Effectively creates strong threads in plastic, aluminium, metal alloys, and wood, preventing damage from repeated screw use. Essential for Repair & Fabrication: An indispensable part of any repair kit for fixing damaged threads or reinforcing new designs in engineering and DIY projects. Specifications: Internal Thread: M5 External Thread: M8 Length: 8mm Material: 303 Stainless Steel Quantity: 40 pieces Refer to Drilling Diameter: 7.1-7.2mm(Plastic), 7.3-7.5mm(Aluminum Alloy), 7.5-7.6mm(Cast Iron) Ideal for: General repair jobs, automotive maintenance (e.g., spark plug port repair), 3D printing, model engineering, and strengthening fixtures in soft metal or plastic components. Note: Please confirm your required thread sizes before ordering to ensure a correct fit.