I don't think anyone has answered his original question. Even Footjoys have different threads and thread patterns (eg fast twist, tour lock, pins, etc.) Figure that out first, and what kind of spikes you need. Then you can figure out how to remove the old ones and then replace with new.
Good day through the bag! Solid distance and dispersion, clubs all were within expectations.
90 shots, only one slice, two hook pulls, and one fat shot. if I had this result during a round, I would pay for all at the 19th hole!