100 Pieces Threaded Insert M3 Self-clinching Nut Brass Internal Thread Knurled, By Heat Or Ultrasound In 3d Printer Parts
https://www.vogueparade.com/shopping/EN/42/1/1005003468539359/100-pieces-threaded-insert-m3-self-clinching-nut-brass-internal-thread-knurled-by-heat-or-ultrasound-in-3d-printer-parts//