340PCS M2 M2.5 M3 M 4 5 M6 Metric Knurled Nuts Assortment Set Threaded Insert Brass Heat for 3D Printing

[340PCS M2 M2.5 M3 M5 M6 Metric Knurled Nuts Assortment Set]: This set includes 340 pieces of M2, M2.5, M3, , M5, and M6 threaded insert nuts. [Heat...