Gueenky 390PCS Threaded Inserts 3D Printer, M2 M2.5 M3 M4 M5 M6 Knurled Brass Heat for Printer Plastic Parts

【Sizes & Quantity】Knurled threaded inserts assortment consists of M2 x 4 x 3.2 (100 pcs), M2.5 x 6 x 3.5 (100 pcs), M3 x 5.7 x 4.6 (100 pcs), M4 x 8.1 x 6.3 (60 pcs), M5 x 9.5 x 7(10 pcs) and M6 x 10 x 8 (20 pcs). 【High-quality Materials】The brass knurled inserts are made of the high quality brass, which ensures excellent corrosion resistance and thermal conductivity, excellent craftsmanship to ensure long-term use and easy insertion. 【Easy to Store and Carry】390pcs brass thread inserts assortment have 6 different sizes, and equipped with plastic boxes that you can classify each size in different grid, no mess and easy to find. 【Perfect Knurling Threading】The surface of the embedment nut has a straight knurling and the internal high-precision threads allow the nut to fit tightly into the mounting object, and form a certain frictional force and biting force, which can be fixed to prevent falling off. 【Widely Application】Knurled injection brass nut is widely used on the injection molding pre-embedding and other processing techniques for tightly engage, play a role in connection, locking, and fastening. threaded inserts are great for subsequent insertion into 3D printer parts of Anycubic, Creality or Prusa printer.