As far as I know, no...the Acme pin they used in 1993 (and mine is a 1993, with Schon lettering on the shaft collars) is as shown, with the extruding end. My Schon shafts have a corresponding shallower insert, so won't fit on a standard 5/16x14 pin (too long), but any 5/16x14 shaft will fit...