I've watched numerous YouTube videos of adding a subpanel and the subject of the green screw and when it should or should not be removed seemed clear to me. However, for the sake of safety, I need some clarification. My main panel is on the outside of my house and I am adding the subpanel right next to it. I just bought a new GE subpanel and it has both neutral and ground bus bars already installed. A green screw is provided for the neutral bus bar but not installed. From what I understand, in my situation, the green screw should not be put in. However, on the ground bus bar, there is also a green screw already installed. So, a green screw is always mentioned in subpanel installation and never have I heard anyone refer to whether a green screw should or shouldn't be in the Ground Bus Bar. So, should it be left in or removed?

I'm looking to replace an outdoor light with a power receptacle so that I can run a power failure light (that plugs into an outlet). The existing light is held by just a clamp (see picture). I bought a plastic electrical box but the threads that hold it in place are situated way in back of the box. Should I have bought a box like this one instead? [url]https://www.homedepot.com/p/4-in-x-2-in-Drawn-Handy-Electrical-Box-Raised-Ground-8660/100560024[/url] [IMG]https://imgur.com/a/FA7EcCY[/IMG] [url]https://imgur.com/a/FA7EcCY[/url] [IMG]https://imgur.com/a/Mo0pEGA[/IMG] [url]https://imgur.com/a/Mo0pEGA[/url] [url]https://www.homedepot.com/p/IDEAL-Security-6-Bulb-High-Output-Long-Life-Power-Failure-LED-Light-Fixture-SK638/204813823?keyword=IDEAL+Security+6-Bulb+High+Output+Long+Life+Power+Failure+LED+Light+Fixture&semanticToken=022t00000+%3E++st%3A%7BIDEAL+Security+6-Bulb+High+Output+Long+Life+Power+Failure+LED+Light+Fixture%7D%3Ast+cnn%3A%7B0%3A0%7D+oos%3A%7B0%3A1%7D+dln%3A%7B572143%7D+qu%3A%7BIDEAL+Security+6-Bulb+High+Output+Long+Life+Power+Failure+LED+Light+Fixture%7D%3Aqu[/url]