The Light Source Mega-Coupler, 1/2" CS Bolt, Mill, No Har

Unless ordered without hardware, all Mega-Couplers come with a Belleville washer and a Nylock Nut for attaching the load. The Countersunk Mega-Coupler comes with a 1/2" or 3/8" flat head base and comes standard with a heavy duty wing nut developed by The Light Source.