The Amphenol FCI BERGSTIK II 87185-124HLF is a 24-circuit, single-row, unshrouded male pin header on 0.100" (2.54mm) pitch — the standard footprint for through-hole board-to-board and wire-to-board interconnects.
The 0.100" (2.54mm) pitch and 0.100" insulation height keep the board footprint compact, but the 1.043" (26.49mm) mating pin length and 0.095" (2.41mm) post length mean the overall contact length is 1.238" (31.45mm); verify the board stack-up and enclosure clearance before layout. The through-hole termination (solder) is straightforward for wave or hand-solder assembly.