3/4" ID x 5/8" wide 1.37 x 24 RH Adaptor for Freewheel Sprocket No Key Way - No Set Screws - No Zinc Plating

3/4" ID x 5/8" wide 1.37 x 24 RH threads, Adaptor for Freewheel Sprocket No Key Way - No Set Screws - No Zinc Plating. 

These are not zinc plated so they can be welded to a 3/4" shaft. 

To find all the types & sizes of adaptors - adapter - Track Cogs - Lock Rings - Track Cog & Three Prong Sprockets:  Type " FWADP " in the Search box.