My Qualters & Smith power hacksaw has stripped a thread in the vice. It's the larger, less common Qualters & Smith machine, sold as their heavy duty hacksaw. 8 inch capacity with serial number HDS 8 2505. It may share parts with the smaller saws, but I'm not sure.
It's not the main thread which closes the vice which is damaged, but one which accepts a pivot pin and allows the movable jaw to rotate. I can think of a few awkward and unpleasant ways of fixing this, but nothing straightforward, so I'm looking for spares.
I've already tried Birkett Cutmaster, who bought Qualters & Smith in the1980s. They don't have anything, so I'm guessing I'm looking at used spares. Does anyone know of a machine tool dealer who keeps used spares? Or anyone at all who has Qualters & Smith spares?
Any suggestions would be much appreciated.