Im looking for a few of the screws that hold on the tank or airbox cover, the air box and most of the other trim on an XB. 20mm total length, torx dome head with a shoulder so as not to crush whatever it is holding. If not, a part number would be handy. Thanks.

Have a look here, for the part no. (Item 7):
https://www.twinmotorcycles.nl/webshop/parts.asp?mc=1&jaar=2003&model=1CEA8513-1DC0-42DF-9262-CD5E634E91AA&sid=FD487149-4622-45AE-9998-1CEFFE1DC7E9

Thanks, I now have the part number.