Looking for Graflex blade holder set screw

[BlackThorne]

Hey everyone,
I bought a Graflex for a saber project from The Graflex Shop with a Graflex blade adapter a while ago and I managed to lose the set screw for the blade. Can anyone tell me the measurements for a replacement or just what screw I need exactly?
I wrote to the The Graflex Shop about that a while ago but never got an answer

 

[Halliwax]

When ever I get into a jam like this I run up the street to my hard ware store with the part and try to find a suitable replacement