Set boccole filettate in ottone 300 pz M2 M6 dadi zigrinati per stampaggio ad iniezione
300pcs Threaded Insert M2 M2.5 for M3 M5 M6 Insert Nut Brass Threaded Bushings Internal Thread Knurled Nuts with Plastic Box for Plastic Parts by Heat or for 3D Printer Parts. 300PCS Threaded Inserts.