Features: Brand new and high quality screw-in sleeve set contains 125pcs thread insert, including 9 size, 5mmx10 (35pcs), 6mmx10 (15pcs), 6mmx15 (17pcs),6mmx17 (10pcs), 6mmx20(17pcs), 8mmx15 (10pcs). 1pcpcs) 1pcs) 20x11pcs, 8mmx25 (5pcs), 10mmx20 (4pcs). These screw in sleeves feature a unique self tapping external thread, providing excellent resistance against loosening from vibration/twisting. Suitable for DIY enthusiasts and professional alike, these threaded bushings essential for enhancing the strength of wood furniture connection. Perfect for various woodworking projects, these screw in sleeves ensure a secure connection between furniture like cabinets and bookcases. Enjoy easy installation and long terms performances with these screw in sleeves, suitable for use with soft wood such as pine, fiberboard, and plywoods. Specifications: Material: steel Package Includes: 125pcs Threaded Insert note: Please allow 1 to 3cm error due to manual measurement, please make sure you not mind before your bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.