ᐅ Straps in the door frame cannot be secured (no hole available).

Hello everyone,

Today I installed a door frame from Kilsgaard (type 3) and inserted the hinges. I then noticed that there is no lateral hole in the hinges to tighten them with an Allen key. This means the hinges are only inserted and not fastened.
I also checked your second, identical frame, and it also has no hole for securing the hinges.
Now I wonder if the inserted hinges can hold permanently without being fixed.
In the photo (which is unfortunately not very sharp), you can see in the red marked circle the spot where there is usually a hole for securing the hinges. However, this is missing on this frame.

Since this is the first door I have installed, I wonder if I might have overlooked something or if the hinges really do not get fixed any further.

Thank you very much.