We have remodelled that mechanism to make our piano stool mechanism. It includes a 3" long machined steel nut (for insertion in the stool base) plus a 4-1/2" diameter seat flange fixed to a 1" diameter by 8" long threaded steel shaft. The #6 and #12 fixing screws needed are not included, since their length will be design dependent.
A unique feature of our redesign is threading only the bottom third of the nut. This avoids toppling of the seat if the shaft is spun out of the threaded portion. The system still provides 6" of height adjustment.
Made in Canada.
Select the "Instr" link below to view piano stool plans.