I had the same issue with my orange Tyrade, but realized it in time to not wreck the screws. Instead I bought the proper size tap and fixed the holes. Metric size 2.2 x .45 mm, IIRC. Worked like a charm. Seems they forgot to tap those holes.I got mine today!!
Then I tried to switch it to tip up and promptly wrecked both screws. I dont think the holes are tapped properly...
Bill