Yep, I was removing one of the screws on the Masso connector while installing the new wiring for the rotary, and I dropped it, and damned if I can find it even with my magnetic sweeper. Is there any place I can find a list of the types and sizes of the various screws bolts and thingamabobs that are on both the Masso elite and the Onefinity machine? I would like to have some backups. I ordered an assortment of metric cap screws and a tap and die set from amazon. Hopefully that will do me.
Not sure if this list will have the one you are looking for….
Maybe try the install video for the rotary, they tend to mention screw and bolt sizes while talking