binifiMux M3 Screws Kit, 360pcs (7 Sizes) M3-0.5mm Black Countersunk Flat Head Phillips Machine Screws and Hex Nuts Kit for 3D Printer Robot Project Toys RC Models

Valuable Assorted Black M3 Screws Hex Nuts Kit This binifiMux M3 flat head phillips countersunk machine screws assortment kit include M3 0.5mm x 4mm 6mm 8mm 10mm 12mm 16mm 20mm bolts in total 210 pieces and 150 pieces M3 hex nuts, Dimensions This flat head countersunk m3 screws are standard metric thread, its head diameter is 5mm, screws length include 4mm to 20mm, the m3 black hex nuts have 2.5mm height and 5.5mm distance between 2 hex edges, High Quality Steel Made of high quality carbon steel, tough, and durability, and good looking, smoth furface and no blurs, M3 screws is perfect for 3d printers, robotics project, toys, DIY designs etc, Organized storage This M3 screws and hex nuts are organized into one plastic case, every size is seperated so you could easily get what you need, and also screws nuts could store for a long time in it, and Service Committed to best service to you if you have issues about units