6 positions at 4.20 mm pitch — the BOM-fit check
The 4-1775099-1: This is a 6-position, dual-row male header from TE's ATX series, on 0.165 in (4.20 mm) pitch. The 2-row layout with all positions loaded gives you six contacts in a compact footprint — the row-to-row spacing matches the pitch at 0.165 in (4.20 mm). That tin thickness is the same on both ends — no mismatch between the contact interface and the board termination.
Locking ramp and 4-wall shroud — vibration resistance built in
The housing is molded from polyamide (PA9T), nylon 9T in ivory, rated UL94 V-0.