Usually there is a small plastic or metal hook on the other side of the panel connector (opposite the screw side) which will allow you to use a small zip tie to secure the unscrewed side of the connector.
-Robert
"Well done is better than well said." - Benjamin Franklin
Any ideas where to get this or any other ideas how to get a good
connection? (retro-fit).
Easy way to solve this is to lace it in place with some no. 9 wax twine.
I do this on most of these connectors, it's more secure then the cheesy
velcro loops.