Self-Tightening Quick Change Lock Nut for 6″ to 9″ Grinders – 5/8-11″ Thread

Self-Tightening Quick Change Lock Nut for Grinders. – Compatible with 6″ to 9″ Grinders – 5/8-11″ Thread. Replaces standard 5/8-11″ flanges on grinders for fast, tool-less disc changes. Designed for compatibility with 6″ – 9″ grinders featuring a 5/8-11″ spindle.