Can you explain more detailed what you intend to do?
Basically the thread is IN the angled PC and not in the separate PC fixing thing as it is on the "old style".
A 616 engine can be upgraded with angled PCs. There is one single type of PC that fits.
On 60x engines the PCs are special. The glow plug hole is different.

Angled injectors on 616: change PCs and injectors
Angled injectors on 617 turbo: way more complicated. The PC shape is different.

I have a picture of a disassembled PC.

Tom