It doesn't have to be these. Just a link to this company. They sell just about everything at all price levels.
Linn Akurate 242 speaker spiked
I have a pair of Linn Akurate floor speakers I’m looking to purchase a 2 sets of speaker spikes - mine went missing. They are metric M12-1.25 (fine coarse) there are very few M12 speakers spikes on the market. I purchased a set, but they were coarse thread and not 1.25 thread. (sorry, I tried to edit my title from spiked to spikes)