330pcs Female Threaded Inserts M2 M3 M4 M5 Brass Threaded Bushings for 3D Printing

The inserts are stable and adhere strongly to the plastic, making screwing easier. The knurled nuts with opposing spirals provide high and balanced torque and tightening, as well as high tensile strength. Quality: High-quality 3D printed inserts for a good finish. The inserts are made of the highest quality brass, offering excellent corrosion resistance and optimal thermal conductivity for long-term use and easy insertion. Used with a soldering iron to assemble and join 3D printed parts made of PLA and PETG. The most suitable plastics are PLA, PETG, ABS, ASA, PPS, CPE, PP, etc.