Threaded Inserts M4 Brass Threaded Sockets M497mm Threaded Inserts for Hot Fusion for Plastic Components and 3D Printing 50pcs

INDUSTRIAL GRADE BRASS - Made of passivated brass, these threaded inserts are designed for plastic components. Their brass construction gives them excellent corrosion resistance and ensures high durability for threaded assemblies. This set includes 50pcs M4*9*7mm threaded inserts. Multiple sizes are available, allowing you to choose the one that best suits your project. The 45° external knurled surface improves torsional and tear resistance, while the precision internal thread ensures reliable and precise tightening. These inserts can be hot inserted, ultrasonic or directly during injection molding, making them ideal for 3D printing and plastic parts manufacturing processes. Compatible with plastics such as PA, PC, PLA and ABS. Common applications include 3D printer parts, electrical enclosures, plastic automotive components, and other plastic assemblies requiring threaded connections.