I just looked through again:HOHNER USA HARMONICA PARTS CONSUMER PRICE LISTMarch 15, 2011
* All reed plates ship with screws or nails
** All cover plates ship with screws or nails, & supports
*** All mouth pieces ship with screws, silencers
**** All slides ship with flange, blank, spring & pin
Can never have enough screws...
Perhaps Ron has those 'invisible' screws that those 7 hole with 5 visible screwed Spec20s have...