It uses the standard 0.100" (2.54 mm) pitch on both rows, with a row spacing of 0.100" as well — a grid that matches common perf-board and PCB layout patterns.
The 0.190" (4.83 mm) insulation height and 0.230" (5.84 mm) mating pin length give enough clearance for most shrouded receptacles. The 0.125" (3.18 mm) solder post length is short — suited for single-sided boards or where the header sits flush on the back side. For thicker boards or through-hole plating, confirm the post length clears the board thickness and any solder fillet height.
Within the BERGSTIK II family, the 68697-118HLF's 18 positions sit between the 16-position (68697-116HLF) and 20-position (68697-120HLF) variants at the same 0.100" pitch and row spacing. The choice is purely a circuit-count match — the footprint scales by one 0.100" column per two positions added, so the board layout is a simple extension of the same pattern.