The 1-1744439-7 is the 17-position member of TE's Economy Power 2.5 header line, a single-row shrouded board-to-wire connector with a friction lock on the mating interface.
The 4-wall shrouding and friction lock reduce the chance of mis-mating or vibration back-out on a wire harness — the lock holds the pair together without a secondary clip. Glow-wire compliance per the spec means the housing material (UL94 V-0 nylon) is tested for the glow-wire ignition test, a common requirement in lighting and appliance equipment.