Board footprint and socket fit
The 67997-410HTLF: The 0.230" mating pin length gives enough reach for a typical box-header or IDC receptacle, and the 0.120" solder tail fits a 0.062" board with room for a wave-solder fillet.
Through-hole solder termination — the 0.120" post length fits standard 1.6 mm (0.062") PCBs with enough protrusion for a reliable solder joint. No board locks or alignment pegs: the pins themselves provide the alignment during soldering.
