M3*10+6 Standoff Hex Spacer (Brass, Male-Female) is a type of hardware that is used to space out and secure components in electronic or mechanical systems. It is made of brass and has a hexagonal shape, which allows for easy tightening and adjustment. The spacer is designed with male and female threads, which allows for it to be screwed into place between two components. The length of the spacer is 10mm with 6mm thread on both side. The M3 refers to the size of the thread, which is 3 millimeters in diameter.

These hexagonal brass metal spacers have female / male or male / male type M3 thread size. They are often used to raise a circuit board from a metal enclosure.