Looking at the picture, it sure seems to me as if any modern cable release should fit. All of mine have a threaded conical tip that fits all of my shutters for my view camera and all of my other cameras. Could the cable release that you tried be the problem?......Regards!
The diameter of the cylindrical, straight one is about the middle diameter of the conical one. So it hardly can look too big. Also one should be able to distinguish even the female versions by meticulous visual inspection.
The straight one is the american one, I doubt it was ever used in Europe, though it might have been used on some export version.
AGX my standard cables just dont fit in the hole, too big. but i did find one old cable in my junk heap i thought was cheap, cloth covered, that seems to fit perfectly. its very tip is ever so slightly smaller and does thread in n holds.
i wonder if newer cables are just sloppy quality control, out of spec or perhaps there is no need to make tips start smaller?
i just find it strange a brand new $70 cable doesnt fit but my old junk from the 60s does.
Compur 00 Kodak Retina vintage cable release socket at the top edge 2.75 mm.
Synchro Compur 00 90mm Super Angulon vintage top of the cable release socket 3.0 mm.
Synchro Compur #1 Schneider Symmar vintage top of the cable release socket 3.25 mm.