since the threading is 27 tpi & NOT 24 tpi, you'll ruin the threads in the Jensen boiler if you force it in.
Well, damn. I cant believe it is that close to whats needed. Any idea what I need in order to achieve what I am seeking?
Will not only ruin the Jensen threads... there is no flange for a gasket.
How can I connect PM 1/4-40 to 5/16-24?