I'm looking to get a Jena Tessar 210mm 4.5 fitted on a Linhof board for my Shen Hao 4x5.
I ran across this on ebay. I asked the seller what is needed to fit this on a Linhof board, and the reply was a "ring" and a "board with screws", but I'm not familiar with "screws".
Could someone please point me in the right direction or reply with a link with such "screws"?
As you can tell, I'm relatively new to this. I already got another lens, but it was neatly fitted on a board and ready to shoot.

Thanks!