5-50pcs Hex Female to Female M2 M2.5 M3 M4 M5 brass standoff spacer Hexagonal Stud Spacer Hollow Pillars
https://www.vogueparade.com/shopping/EN/42/8/1005001479466801/5-50pcs-hex-female-to-female-m2-m25-m3-m4-m5-brass-standoff-spacer-hexagonal-stud-spacer-hollow-pillars//