89 Mustang LX 5.0 convertible top ???

I just purchased a convertible top latch catch and pin guide set for my car. I called the place of purchase and asked them tht what they sent me matched up except 4 one thing. My old set has screws(1 per) holding them in. No screw holes on the new set. I've checked with other vendors and the same thing. I'm going to have to use a glue to attched them. the parts are made of plastic and what I'm gong to attach to is metal(or plastic don't know). What is the best glue to use for this type of application.