Specifications High-concerned chemical:None is_customized:Yes Model Number:TLM200 DIY Supplies:Electrical Brand Name:AuroraCharm Origin: China Item Type:Threaded insert Easy to Use: The heat set inserts is matched with M3 soldering tips. Use the soldering iron sleeve to connect it accordingly. It can be embedded in the plastic by heating, and then connected with our M3 screws of the corresponding size for easy operation and replacement. Solid Material: The threaded inserts for plastic is made of solid brass, which is strong and will not rust. The even and tight threads make it firmly fixed in the accessories. The smooth threads inside make the screws etc. Seamless connection, can be used for a long time without loosening. M3 Threaded Inserts: Our set contains 200 pcs of commonly used M3 heat set inserts, outer diameter 5mm, length 4mm inserts, and comes with small tweezers and a box with labels, which can be easily stored and carried. Strong Stability: The design of the spiral knurled nut provides a tightening torque, making it difficult to fall off when rotating during use. It can be firmly fixed on the pressure-bearing component and has strong stability. Widely Used: M3 knurled nut assortment kit can be applied to thermoplastics such as PPS, ABS, PP, etc. It can be used with soldering iron heating or ultrasonic embedding, and can be used to reinforce 3D printed parts and assemble plastic parts, etc.