It mates with a Mini-Fit Jr receptacle housing and crimp terminals to make a wire-to-board connection at 4.20 mm pitch.
The post length is 0.140" (3.56 mm) — enough to protrude through a standard 1.6 mm board for a solid solder fillet on the bottom side.
The mating receptacle is a Mini-Fit Jr housing (e.g., Molex 39-01-2065 or similar 6-position single-row) loaded with crimp terminals (Molex 44476-1112 for 18-24 AWG, tin-plated). Termination on the header side is solder — through-hole for the pins, plus the board-lock tabs. No press-fit option on this variant.