It uses a standard 0.100" (2.54 mm) pitch on both the mating and row spacing, which keeps the board footprint compatible with legacy layout patterns.
Rated 5 A per contact at 110 V, the 67998-242HLF is sized for signal-level and moderate power duty on a board-to-board link. The 0.100" pitch gives enough creepage for the 110 V rating without forcing an oversized footprint, but the per-contact current limits it below bus-level power distribution. The 15.0 µin (0.38 µm) gold plating on the mating surface handles repeated mating cycles in environments where tin would fret — think field-serviceable boards or corrosive atmospheres.
This is an unshrouded male pin header with a 0.318" (8.08 mm) mating pin length and a 0.107" (2.71 mm) solder post. The through-hole termination requires no special tooling beyond a wave solder process.