






🔥 Upgrade your 3D prints with brass precision that lasts!
The QSJ 130Pcs Threaded Inserts Kit features 130 high-quality M3x4x5 brass inserts and a soldering iron tip, designed for easy heat-set installation into 3D printed plastics. This kit enhances the durability and strength of plastic components by providing reliable, corrosion-resistant threaded fastening solutions ideal for prototyping and plastic reinforcement.





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