Kohler Memoirs K-6918-0 Guide D'installation Et D'entretien page 9

Hex Shaft
Finished Wall
3-5/16" (84 mm)
6. Install the Wall Kit
Thread the notched pegs onto the threaded rods, positioning the
end of the notched pegs 3-5/16" (84 mm) from the finished wall.
Position the pegs with the notches facing down.
Insert the hex shaft into the receiver, then position the assembly
into the underside of the bowl and align with the holes in the
back of the bowl.
Kohler Co. 9 1391898-2-A