3M™ Mini Stack Connector Boardmount Header 3S6 Series helps reduce board footprint up to 30% vs. 3M™ Mini-Clamp Connector Series in sensor wire connections for automated manufacturing. Versatile miniature 3M Mini Stack headers series 3S6 features fixed tabs that prevent lifting while keeping the board secure during soldering. They accept thin, compact 3M™ Mini Stack Wiremount Socket 3S5 Series, which can be stacked into blocks of up to four for easy mating and unmating.