I just put mine on the conv top was already on the clip go in the channel. If you look down under the pinch weld you will see the holes where the screws go. The clips have a little slot in them and the pinch weld goes in that slot. You may need a second pair of hands to pull the molding into the pinch well to get the screws in the holes. It was a lot easier to put the screws in with the top half way up and then a stubby screw driver or a 1/4 ratchet with a Phillips bit.

I used a product called NP1 it's what they call a stop gap. 6 bux a tube but always stays pliable. very messy though once you get on you.

I also layed down some painters tape under the lip ofthe molding while installing then pealed it out from under neath the molding when done.