So I went to Lowe’s to see Their selection of double outlet boxes and came across old construction and new. The new construction had nails on the outside. So I thought hey I’ll try it since I can access from behind the drywall. It was going smooth but honestly it was so hard to nail without hitting the drywall and still keep a nice flush setup for front of the box. The old construction had these flaps that go into the drywall and I liked that idea since it ensure it was flush but I hate the fact it’s not screwed into the stud. Soo I seen a electrician on YouTube use these new construction boxes but do the screw on the inside. However, I googled this and people say it’s against NEC for a conductor to screw inside the box to outside. However all the post I read are about using metal screws. Well that got me thinking why not just use plastic screws and problem solved? Also those Madison screw in boxes I did not like those when I tried them as they start to sink back as you screw. Maybe I just suck with them but the idea above gave me a perfect fit I’m just curious if I should be worried since the screw concept is still unanswered if allowed.
Edit: well looks like there aren’t any plastic screw options. It seems nec code in 314 says you can screw from one side of the box so I am curious if this method is now allowed. I was considering keeping it and just using electric tape over screw head. Or should I just remove the screw and assume the drywall can take the beating of plugging stuff in and out?