digicams are so crap in anything but the brightest sunlight
hopefully you can see that they are threaded at normal height & there is a section extending up beyond the threads for the stem to clamp onto! NOTE these aint the same as a regular clamp on as the forks are significantly thinner at the top! the stem can be used either way up but i prefer flipped as shown.
plus the shot from above you can see how thick the steerer tube is :o
the forks pictured have slots for 10mm axles and very solid built in peg bosses with a large internal thread (12mm i think?) same size as a renault Laguna wheelbolt ( i checked
) and i think the dropouts are about 5mm thick, so all in a very solid fork
these are seriously hardcore!