Mighty-Bond® Zinc Grounding Locknut with Aluminum Lug 1-1/4″
https://nsiindustries.com/product/mighty-bond-zinc-grounding-locknut-with-aluminum-lug-1-1-4/
The Bridgeport 1-1/4″ Zinc Die Cast Mighty-Bond® Grounding Locknut with Aluminum 14-4 Lug fastens threaded connectors or nipples to a box or enclosure. The 14-4 tin plated aluminum lug offers an additional bonding or grounding path.