On 2009-11-23, Buerste wrote:
The screw and boss are one piece on this 4" vise. The screw is 3/4 ACME I
assume. I did Google for parts with no luck, is there a source or do I just
get a new one? It's way PITA to make one and we're too busy. I do have
another vise on that workbench, we really need two but I'm willing to wait
for a part if I can find one soon.

Wilton will likely have them for a reasonable price.

i