The Hoosier street radials are hard to beat on the street. Don't get the drag radials as they are too soft. They have a much more open tread and work much better when it is wet. Still any really big wide tire like this can be a handfull when it is wet. Just be carefull.

I don't know about the screws. The street radials may or may not seal. They only run about 20-25 psi maybe if everything is clean and free of burrs they will seal. I'd hate to try fix-a-flat but it's a possibility. You are not really supposed to run tubes in these but I would try it as a last resort.

My Hoosiers don't leak on 14" Convo Pros but I don't have screws either. As it turns out the Goodrich TA leak a bit on the front however. Not much but they take topping off every couple weeks.

good luck