Copper Spacer M/F M3*18 mm

From the shop's description

Copper Spacer M/F M3*18 mm The Copper Spacer M/F M3 × 18 mm is a hexagonal standoff spacer machined from copper, clearly engraved with its size and material marking (“M3 * 18 mm – COPPER M/F”) for easy identification. The spacer features a male M3 threaded end on one side and a female M3 threaded end on the other (M/F configuration). This allows it to screw into a female threaded base or nut on one side, while accepting an M3 male screw or another male-threaded component on the other — making it suitable for stacking and extending standoff heights. The hexagonal body provides wrench/spanner grip for secure installation, and the 18 mm body length maintains a consistent, fixed gap between mating parts such as circuit boards, components, and enclosures. Features M/F configuration M3 thread size 18 mm hex body Hexagonal body shape Copper construction Engraved identification Stackable design Specifications Specification Detail Product Type Copper Spacer Material Copper Thread Size M3 Gender Configuration Male / Female (M/F) Male End M3 Male Thread Female End M3 Female Thread Body Length 18 mm Body Shape Hexagonal Applications Creating a fixed 18 mm gap between a PCB/board and a chassis, panel, or enclosure Mounting motherboards, circuit boards, and electronic modules with M3 fixing points Stacking or extending standoff heights in electronic assemblies Securing components, terminals, or hardware using standard M3 screws General electronics assembly, maintenance, and DIY projects requiring M3 spacing Package Content 1 x Copper Spacer M/F M3*18 mm