The FCI BERGSTIK® II 86837-458HLF is a 58-position, dual-row, unshrouded male pin header on the standard 0.100" (2.54 mm) pitch — the same spacing as legacy DIP packages and perfboard.
The 0.100" (2.54 mm) pitch and 0.100" (2.54 mm) row spacing define a standard grid that matches common prototyping boards and legacy 0.1" footprint patterns. The 58 positions — all loaded — mean this header fills the full pin count of the mating receptacle; no option for depopulation on this variant. Rated 5 A per contact at 110 V, with tin-on-tin mating surfaces at a thick 100.0 µ" (2.54 µm) on the pin side. For a single-mate, semi-permanent board-to-board connection, it's a solid value. Overall contact length is 0.600" (15.24 mm), with 0.380" (9.65 mm) of that above the insulator for mating depth and 0.120" (3.05 mm) as the solder tail below.
Phosphor bronze contacts with a tin post finish.