Totaling 420 pieces, this White Nylon M2.5 Screw Set is a must-have smörgåsbord for your workstation. You'll have more than enough screws, nuts, and hex standoffs to construct your maker projects for days on end! M2.5 screws fit nearly all of the Adafruit breakout/development board mounting holes (2.5mm or 0.1" drill holes). These screws work handsomely with our Feathers, Adafruit breakout boards, Pi HATs and plates, and more! Since the screw set is nylon, you can file pieces down easily, and they don't conduct electricity or interfere with antennae/magnetometers.