1. Applied plastics: Nuts are designed for thermoplastics. Its function is to form high strength, corrosion resistant internal threads on the plastic parts to provide a base point for other parts.^2. Easy to use: high-performance press-in nuts, threaded inserts are press-in nuts that were developed for later insertion in 3D printer parts. Press-in nuts can be easily embedded in blind or through holes using ultrasound or hot (soldering iron).^3. High quality material: made of high quality, the material is environmentally friendly, with excellent rust resistance, corrosion resistance and thermal conductivity, long service life.^4. Precision Construction: The nut construction is the standard metric system, the thread is smooth and has no burrs, and the thread is clear, which ensures a balanced high tightening and loosening torque and suction force, which makes it quite easy for the user to insert.^5. Multiple Sizes: We have M3, M4, M5, M6, M8, M10, M12, 182 pieces in total, which are placed in different compartments of the plastic box for easy sorting and storage to avoid mix-ups and loss.^-9