Raspberry Pi Standoffs, Raspberry Pi 3 Model B / 2B Hat M2.5 (11mm body + 6mm screw) Hex Brass Standoff Cylinder + Screw + Nut Kits 20 Pieces/Lot M2.5 standoffs for Raspberry Pi 4 Model B, Raspberry Pi 3 Model B+, Raspberry Pi 3 Model B, 2B,B+, or Raspberry Pi HAT expansion boards Packing List: 20 x Brass cylinders (M2.5 x 11mm body + 6mm screw); 20 x Screws ( Pm2.5 x 5) ; 20 x Nuts( M2.5);