Krt alot of the t-top manufacturers use a long screw with a nut that pops open, much similar ones used in drywall. Not sure of the name, but hope this helps you out. I had a 19ft key west cc that I took to key west in summerville and they helped me install mine. They were very nice and helpfull.
"Two things you will never catch me without, a clear conscience and a gun." PBiz
"You are Citadel Men, you have no pension for failure, you wear the Ring, you never let a friend down, you will be good fathers, husbands, and leaders in the armed forces and industry, you are strong in heart, body, and mind. You protect such things as Honor and Fidelity. Your virtues matter not only in wealth, but in the richness of family, you are the last of the knights."
- late President Ronald Reagan