M3 20mm Brass Female Hex Standoff Spacer

M3 brass spacer for compatible PCB assemblies

This brass hex standoff is listed with M3 female threading and a 20mm body length. It provides a mechanical spacing point when the board, screws and mounting surface are designed for matching hardware.

The hexagonal body allows a suitable tool to hold or tighten the standoff. Use the correct tool size and avoid excessive torque that could damage the threads or the circuit board.

Check the mounting dimensions

• Material: brass.
• Nominal thread: M3 female.
• Listed body length: 20mm.
• Body shape: hexagonal.
• Thread pitch, thread depth and end arrangement: confirm before purchase.
• Pack quantity and screws: confirm the supplied contents.

M3 identifies a nominal thread size, not the clearance required by every board. Check mounting-hole diameter, available thread engagement, surrounding components and the actual standoff arrangement before assembly.

Spacing does not mean electrical insulation

Brass conducts electricity. A metal spacer touching a copper trace, component lead or another live point can create an unwanted connection. Use suitable insulating hardware where the design requires it; do not rely on this part as an electrical insulator.

Compatibility with a particular Arduino, Raspberry Pi, controller or motherboard is not universal. Hole dimensions and layout must match, and the assembly needs enough clearance without bending the board.

Disconnect power before installation. Load capacity, torque limits, dimensional tolerance and a specific plating or alloy grade are not verified here.

Frequently asked questions

Does it fit every development board?

No. Check the mounting holes and hardware requirements of the actual board.

Is it electrically insulating?

No. Brass is conductive.