Words with 'atw' at the start and 'h' at the end

In total, how many words are available using these particular combinations of letters?
From this page of words that start with 'atw' and end with 'h', there is solely 1 combination that is available altogether.

What's the highest number of points you're able to get in Scrabble from this list of words that start with 'atw' and end with 'h'?
With sadly 1 combination to choose from, the only choice you can play for is 'atwitch' for a score of 15 points.