It is the male signal pin that crimps onto 20-24 AWG wire and inserts into the HDP-20 pin housing (the male connector half).
Crimp termination, 20-24 AWG. The stamped contact geometry is designed for the standard HDP-20 crimp tooling — the indent crimps the conductor barrel onto the stripped wire and the insulation barrel grips the jacket. The 20-24 AWG range covers the typical signal wire sizes for D-sub applications in control cabinets, serial data links, and instrumentation harnesses.
