Hi Adam
UK supplied hardtops were fitted with 2-No locating clips on the leading front edge of the hardtop which align with 2-No locating clips on the cars roof centre beam (These are locating clips without any clamps). there is no front centre clamp fitted, There are 2-No clamps fitted the lower rear of the hardtop one on each side as per your photo these attach to the cars body using a bolt which passes through a hole in the clamp a screws into a threaded hole on the body work of the car. The brackets fitted on your hardtop don’t have the holes to allow the clamps to be bolted to the cars body, having explained how UK hardtops fit I see no reason why your clamps should not work as long as you have the correct mating pieces which would need to be mechanically attached to the cars body.
Hope this helps

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