Specifications High-concerned chemical:None is_customized:Yes Model Number:300pcs DIY Supplies:Woodworking Brand Name:AuroraCharm Origin: China Item Type:Threaded insert Package includes: These threaded insert combination kits are available in 15 sizes, including different sizes of M2, M2.5, M3, M4, M5, M6.Each specification has its own separate compartment in the plastic box, and we have attached labels with detailed annotations of key data for easy storage and finding. Perfect fit for your 3D printed parts: Use our threaded inserts to seamlessly retrofit your 3D printed components, easily embedding into blind or through holes using heat or ultrasound.It is the best solution for adding threads to 3D printing. Stable and long-lasting:The threaded inserts are made of high-quality brass, ensuring optimal corrosion resistance and thermal conductivity.This means that each insert nut can be used for a long time and is easy to use.When the insert nut is no longer needed, just carefully remove it from the pressure part and the insert nut can be reused. Secure fixation: The opposite spiral knurled nuts provide balanced high-tightening torque to ensure a stable connection.Guiding and insertion have been greatly simplified. Versatile compatibility: Including PLA, PETG, ABS, PPS, PP, etc., the threaded sleeve will be securely fixed once the plastic of the parts surrounding the brass sleeve cools and hardens.