Quad 22L2

I use to do tool & die work many years back. I sold my speakers before tackling this issue. I did disclose the issue go the buyer though. So, either OD on the threaded spike was too big or the ID on the base inserts is too small. I tried contacting QUAD and got no where with this issue. It was so out of tolerance that attempting to screw in the spikes resulted in the base inserts unscrewing.
So, one might need to use the correct tap and chase out the threads on the inserts. This gets tricky since the inserts are a two piece assembly installed with a special 2 pin spanner wrench. One could possibly use a thread file to remove some material off of the spike - threads. This would most likely remove the brass plating though.
I ended up fabricating my own spikes using a smaller diameter brass threaded rod with nuts, washers on top and bottom. Less than ideal but it worked without looking corny.

Don't get any answers from companies using Chinese factories because they don't have any.

Point taken.

Just a quick update. For the first few weeks, I did not have the speakers bi-wired but after reading that is what Quad recommends, I ordered a pair of bi-wire speaker cables from Canare. Well after listening for the past few weeks, I noticed that the Canare seemed to dampen the sound-highs were less airy and the decay was less, the bass was not as detailed or strong. I even checked that they were correctly plugged and not inverted. So I switched backed to the previous cables and, voila, the detail was back. I am not knocking the Canare but I do wonder if bi-wiring is really worth it? I'll keep it this way it is from now on. Oh, and the original cables were Emotiva. I just think they sound better.