Originally Posted by
jonwvara
...a nut from a bolt-on Suntour hub--which I believe must be 10 x 25.4, since the same nut threads cleanly onto every other Japanese rear axle I've tried it on--threads onto the Schwinn Approved solid axle without binding, but is very sloppy and loose. Is that consistent with the Schwinn axle being, as you say, 3/8 by 26 TPI?
That is indeed the expected behavior when threading a 10mm x 1.0mm (25.4tpi) nut on a 3/8" (~9.53mm) x 26tpi axle.