Ok this is probably super weird, I try to find hardware that has a larger diameter head. I have a set of bronze ones with one copper bolt that are pretty good sized, the Indy hardware where you can see the cross on each bolt work too. I switch between Phillips and Allen key frequently too don’t really care too much. And I always make sure my fucking bolts are flush to the board when I set it up and normally my base plates never come lose in the entire time I have that board.