So with more time later I did a search and also found what I believe to be the website listing these forks. I see they are threaded. I also see a large amount of threads, that portion is fairly long. So I suspect my initial suggestion is likely correct.

But I also warn anyone who is installing a replacement fork that has a lot of threaded length. Make sure that the wedge of your stem sits below the lower end of the steerer's threads. If not then the outward pressure that the stem wedge places on the steerer's insides can cause the weakened and full of stress risers threaded section of the stem to crack. Since this will be out of sight of the rider the usual first indication of this is when only the cables are what's holding the fork/ft wheel onto the rest of the bike Andy