Hi all.

I have somehow laid my hands on a Linhof Super Technika V.

Amongst the several details I need to fix in it, there is a screw missing that secures the end barrel of the viewfinder to the slider for zoom.

I've looked everywhere for service manuals to no avail. Does anybody perchance know the characteristics of that screw? So that I can get a fitting replacement.
Thank you very much.
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