Oh, sorry. I misunderstood the question.
Mine came with the shoes in the shoe storage bag with the tool to install them. Did you lose them or wear them out, or bought used without? I'm not sure if the threads are the same. Maybe a LBS has some sitting around somewhere.
I'd assume most soccer/football stuff now is permanently molded to the shoes. Baseball spikes are often square shaped for what digs in and aren't integral to the thread. Those are screw and spike. CX/mtb are spike and screw all together.
Soccer one may work, but maybe amazon prime some CX spikes?