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150 Pcs M4 Threaded Inserts, Knurled 3D Printing Nuts, Embedment Twill Brass Thr
USD 14.95
Practical Design: With just tools like a soldering iron or screws, you can easily secure the brass screws inserts into the 3D printed holes. 3D printed brass nuts with a full knurled pattern to perfectly match your 3D printer.
