This question comes with the changes to "identical parts" and standoffs not being considered under R12.
Robots may use any commercially available #4, #6, #8, M3, M3.5, or M4 screw up to 2.5” (63.5mm) long (nominal), and any commercially available nut, washer, and / or non-threaded spacer (up to 2.5” (63.5mm) long) to fit these screws.
R6, R7 and R8 do not mention standoffs as an exception for what can be used from a third party.
Are standoffs purchased from third parties legal if they are identical in in all ways besides color to what VEX Robotics / VEX Robotics resellers provide?
Thank you for your time!