OOD!
Price: $3.58

     This is ?2.5mm 6mm+6mm Hexagon Copper Cylinder, to help you fix your raspberry PI. Each pack includes 10pcs ?2.5mm 6mm+6mm Hexagon Copper Cylinder. There are also lots of the other Raspberry Pi  compatible ?2.5mm nuts, screws and cylinders in elecrow Mechanical Parts for your choice.