Technically a normal SSMCX doesn't have any thread, but with a snap-on design just like MMCX. This kind of threaded SSMCX is unique to q-JAYS 2 and AKR02. Even if you go out and get a cable with normal SSMCX connector, it still won't fit q-JAYS 2. As I recall reading quite awhile ago that A&K doesn't sell replacement cable for AKR02, so the only possible replacement cable for q-JAYS is from JAYS themselves.
Good to know. Perhaps other IEM manufacturers will embrace this connection type in the future ...