Now that I've thought about it for a bit, I wonder
if you can use a
nut-and-washer in place of the press fit threaded bushing at the bottom (but
otherwise all the hardware,and insertion directions, will be the same); it
will be kind of difficult to get the nut in there with the KY11-L pressed up
to the front of the BA11-K (which is probably why they went to the press fit
threaded bushing) - maybe hold it with a pair of needle-nose?
Yeah, two solutions come to mind -- the one you mention here with nut and washer, or
inserting a hex-head machine screw in the other direction. Either the nut or the hex-head
screw could then be secured with a small combination wrench.