I designed this clamp to reduce stress to the HDMI- and USB-connectors while using the camera connected to monitor or capture card. In addition to keeping the connectors in place, cables can be tied to the clamp body.
This was designed for Sony A6300 with SmalRig cage, but it should work also for other models.
Screw used for mounting: 4 x 1/4''-20 screw (3/8'' thread length)
I used this pack for getting the correct hardware: https://www.smallrig.com/smallrig-hex-screw-pack-12-pcs-1713.html
The author hasn't provided the model origin yet.