Screw/pin for endlink on 1613/934 bracelet

Hello all. I have a Seamaster with a 1613/934 bracelet. The end-links appear to be of 3-piece construction with a configuration similar to this https://omegaforums.net/threads/1998-849-bracelet-end-link-screw.69090/. Well, I have the exact same thing where one of the screws is missing and the center link is not secured.

Looking at the linked thread Omega screw 124ST3101 was suggested as the part that I need, but googling this part I can't get any hits. Nor can I get an updated part number. I also can't seem to find a part diagram for this bracelet and any other diagram that I find that shows this type of end-link does not show any screws going through these holes (e.g., http://primrosesupplies.com/Swiss%20Tech%20Guides/Omega%20tech%20Guides/Bracelet%20tech/1998998.pdf).

So my question is what do I need to secure that link. Is it just a screw of a particular part number (if so, what is that number) and is there an additional pin that sits inside the end-link between the screws?

Any help would be greatly appreciated.

Thanks.

Thank you for this. Guess I just now have to track it down as it doesn't seem to exist as a replacement part anywhere on the web.