What Size Set Screw in Edison Reproducer Adapter?

[Crank_it_up]

I just picked up an adapter for mounting a smaller Edison Cylinder reproducer like a C or H into a horizontal carriage with a larger opening like a Diamond B or O. There is a small set screw that holds the small reproducer in place and that assembly is then dropped into place and tightened with existing thumbscrew. I have gone through all of my peanut butter jars filled with screws, etc. and can't find the right one. Does anyone know the size? I tried a 4-40 from my "new" parts and it seems close but not correct. Thanks, Joe

[phonojim]

Joe, I'm not sure, but I think it may be the same size as the setscrew in the carriage. I have one of those adapters and will check the screw sizes if none else posts before I can get to it.

Jim

[Crank_it_up]

Jim, thanks for your reply but mine is not the same size. The set screw will be smaller than the thumbscrew on mine.
Thanks, Joe

[Herman]

I checked one on mine... 5-40

[Crank_it_up]

Thanks, Herman. They must not all be the same as mine can’t be that large. I’ll keep digging around. If I just find a screw I can make it into a set screw.
Joe

[phonojim]

For what it's worth, mine is a 5-40 also.

Jim