Please update this if you find sources. I had a similar problem though involving the shock hardware. I tried getting help from Mongoose but was pretty much told that they do not deal with such problems. Scouring the net has been futile for me.
I ended up drilling out the threaded male portion and holding it together with an M6 x 1.0 socket head. No luck whatsoever on sourcing new ones. You'd think they'd have a large amount of spares of things like bushings, bolts, and hardware, especially for a frame design that was in production several years and only went out of production recently. Sheesh.
Im not sure if you saw this in past posts, but a few people found the stock bushing-bolt on teocali supers inadequate to take the beating of aggressive riding (snapping), so they replaced the bushing bolt with a hex bolt, nut and a couple washers. The hex bolt had a unthreaded section just long enough to clear the bearings (19 mm in your case). I did this on my '06 teocali super, but had to cut down the threaded section and chase it with a die. Worked great until the bike died.
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