2x2 Dupont Pin Connector
thingiverse
It's a 2x2 Dupont pin locking connector with a directional groove. Parts are set with a -.2 tolerance parts that seat into each other. Mounting base holes are sized #5 and I'm using #5 self taping screws for mounting it. 5/8 drill bit is a perfect fit for through hole. 9/1 Updated to strengthen threads on receiving side.
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