Find a roll of wide tape and cut it into sections for the size and type of screw you need. Fold one side, fix it on the table, and then stick the screw on it.

You can also use double sided tape to adhere a napkin to the table.

You can use a pencil to mark the type of screw on it, or write it on a small strip of paper.

You can also use paper (such as paper napkins), place different screws on the paper and wrap them in the paper, and write on them to mark them.