Immech – M3 X 30mm Female to Female Nylon Hex Standoff, Double Pass Thread, Plastic Thread Motherboard Spacer Prototyping Accessories for PCB, Quadcopter Drone, Computer & Circuit Board, 40 Pcs
Rpi shop – M3 X 10mm Female to Female Nylon Hex Standoff, Double Pass Thread, Plastic Thread Motherboard Spacer Prototyping Accessories for PCB, Quadcopter Drone, Computer & Circuit Board, 20 Pcs