GBRS Aliexpress Hydra Hardware Upgrade?

Howdy Folks,

I had a question for the community regarding the chinesium Hydra mount clones. I recently got the evolution gear hydra mount and I was wondering if someone can help me find a good set of replacement hex screw. I read that these are the weak link in the clones. I’m not very savvy with fastener specs.

Can someone point me to the right McMaster Carr screws for this? Thanks!

https://www.egtactical.com/home/1043-gbrs-group-hydra-v2-mount-kit-type-b-291-.html

Cheers