The stock Rascal 110 Strut Screws are M3 x 20mm (It is in your manual, page 29).
I replaced mine with 6-32 x 3/4" Stn. Stl. and 6-32 T-Nuts.
From the reports here on RCU, indicates the stock stuff is too soft and will strip out.
It did not happen to me, but a little insurance never hurts.
I replaced them during the assembly.