I’m looking at nylon screws from robosource to make my robot lighter, but I’m concerned about their legality. Can anyone confirm that they are legal?
They are legal
While the VexForum is a great resource to ask questions and @aryan.pradhan is correct, you are better off to check a rule by consulting the manual and the official Q & A.
I wouldn’t want you to show up for a competition with bad information and your robot does not pass inspection.