These PA 66 plastic spacers feature a snap-on coupling with an elastic leaf spring for secure anchoring to the board and an M3 threaded head for stable attachment to the chassis by means of nuts. They can also be screwed inside internally threaded spacers creating a single body for a possible extension. The spacers are compatible with 2.1 mm thick panels also are compatible with Ø 4.0 mm holes. Useful for fastenings to PCBs, panels or chassis.