A PCB standoff is a small threaded pillar that holds a circuit board a set height off a panel, case or another board, so nothing underneath touches the board and there is room for wires. These are brass M2 male-female hex standoffs. One end has a female M2 thread and the other a 4mm male M2 stud, so they screw into a tapped hole, pass through a board and take a nut, or screw into each other.
Use them to lift a small module or display off a panel, mount a board with M2 holes inside an enclosure, or stack two boards with a set gap. Choose the 5, 10 or 20mm body for the gap you need, and stack them for anything taller: two 10+4 standoffs give a 20mm gap. Fit the stud end with an M2 hex nut and the female end with an M2 screw.
Specifications
Wiring & getting started
- Fit the stud
Screw the 4mm stud into a tapped M2 hole, or pass it through the board or panel and fit an M2 hex nut underneath. The stud passes through a 1.6mm PCB with room for a standard M2 nut.
- Fix the board on top
Sit the board on the standoffs and fasten it with an M2 screw into each female end, or add another standoff to build up height.
- Snug, not tight
Hold the hex body with small pliers or a nut driver while you tighten, and stop once the joint is firm. An M2 washer under the nut protects the board.
- Check it sits level
Press each corner of the board. It should sit level and not rock. If one corner moves, that standoff is not screwed fully home, so tighten it until it seats.
