It seems that CK uses a proprietary thread size on their torches. The torch end of the cable will not fit any of my other torches (Weldcraft and generic). I studied the CK web site and several of their documents which were available for download. NOWHERE does it indicate that a proprietary thread is used. Nor does it even show the thread size. The Flex-loc torch is certainly unique and I am sure it will come in handy for many jobs. However, I do not think I will purchase any other CK products.
p.s. Does anyone know of an adapter to connect a CK cable to the torches made by the rest of the world?