【High quality material】Knurled nuts with internal threads are made of high quality brass, corrosion resistant, strong and durable, with optimal electrical conductivity, each nut will last for a long time
【Various standard sizes】: In this kit, you will get 330pcs M2 M2.5 M3 M4 M5 female knurled nuts in different lengths, total 15 sizes. Super large quantity and various sizes can meet your needs to install numerous 3D printing accessories.
【Easy to Use】: Due to the geometry of the threaded sleeve, it holds firmly in the pressure part. The opposing spiral knurled nut ensures a high balance of tightening and loosening torque. Through the guide, insertion has been greatly simplified.
【Customized Box】: This threaded inserts assortment kit comes with a reinforced case, with thickened dividers and latches, keeping all brass nuts well organized, easy to store and at hand when needed.
【Wide range of applications】: These heat set insert are suitable for various plastics and can be inserted in tapered holes by heating or ultrasonic, as well as by injection molding.