I may need a custom screw machined

[Dubis7]

So I was working on my Norelco Continental 300 tape recorder today, took out a screw that holds the oil wick for the bottom flywheel bearing, and the darn thing snapped in half when I was screwing it back in. Near as I can tell, it's pot metal that weakened over time. It's not a hugely complicated part, and I'm attempting to JB weld it back together considering it was a fairly clean break, but if that fails I need to replace it. This is kind of an oddball piece; the thread itself should be standard, but it's more of a hollow cylinder with a single flathead hole on the bottom.

Does anyone have access to or can recommend someone to custom machine a new part? This has been a long restoration job, and I'd hate to lose it to an unobtanium part right at the end.