
The M3 x 12mm Hex Spacer – Threaded Female is a commonly used mechanical fastener designed to create a fixed distance between two components. It is widely used in electronics, robotics, embedded systems, industrial equipment, and DIY projects for secure PCB mounting and structural support.
These spacers feature a hexagonal outer body for easy tightening using a wrench or pliers, along with internal female threads on both ends to accept M3 screws or bolts. The 12mm body length provides reliable spacing between mounted components while maintaining mechanical stability.