The Light Source Mega-Square 2 Inch Coupler To Mega-Coupl, Silver

Both the Mega Coupler and the 2" Square Coupler have solid aluminum wing nut tabs that are stronger than regular steel wing nuts. These allow you to use a ¾" wrench to tighten or remove the coupler without breaking the wing nut tabs. The socket head cap screw locks securely into the hex milled pocket so that the nylock nut can be tightened while the clamp is installed.