xps 15 9520 second ssd

I have a Samsung 970 Evo Plus and want to add it as a second drive to my laptop. However, I don't have the right thermal bracket or the screw. I have seen some amazon postings of the bracket (part 4TW9C), but they're all out of stock. Can I order one from Dell directly? Or should I just get the screw and use the drive without the bracket and hope for the best?