It uses a 0.165" (4.20mm) pitch across 4 rows, with a panel-mount snap-in design and latch lock retention. The housing is molded from polyamide (nylon) and is available in black or red.
The 4.20mm pitch is common for medium-current power interconnects — wide enough to handle decent wire gauges without crowding, but compact enough for multi-row layouts. With 20 positions in 4 rows, the housing gives you a 5-per-row arrangement. That row count means the mating header or plug will also be a 4-row design; a 2-row housing won't align.
Mounting and Retention
The latch lock is a positive mechanical retention feature, useful in applications where vibration or cable strain could otherwise separate the connection.
Contacts and Mating
The crimp termination allows field assembly with standard tooling.