THANKS EVERYONE!
I actually called schwinn back because the size they gave me seemed unlikely. My 2nd rep told me it was standard M6. I tried the m6 previously and it would go in but only 1 turn. The bolts that came with my rack had M5 so I went to home depot and picked up the 6mm tap and cleared out the bike eyelet as well as enlarged the rack to 6mm.
Everything went smoothly :-) I'm ready to go for my test run after work tonight! :-) The end game was just to get something for a cheap bike to throw my chest waders and wading boots in so I can hit Ohiopyle and some other fisheries this weekend!
Thanks for all your help! I'm hopeful everything stays together for the ride tonight!
