Drive Roller with .930" OD with the 12 mm x 1.50 male threads.

These Drive Rollers are Heat treated and Zinc Plated.

You may also need these part:

Clutch Drum 2-1/8" or 54 mm with 12mm x 1.50 threads

Clutch Drum 78mm with 12mm x 1.50 threads

How to install a Drive Roller with a 54 mm ID Clutch Drum

How to install a Drive Roller with a 78 mm ID Clutch Drum