Quick-change clamp popped off, how best to fix
When I first tried to put in the milling head, the level clamp wouldn't close. I assumed it was the familiar design where you turn the bolt to adjust the tension, so I backed off a turn on the bolt and tried the lever again. The bolt promptly pulled out of the cylinder/axle it's screwed into.
The following parts flew off: the bolt, 2 round washers, the axle, the lever, and a rectangular flat spring/washer. I reassembled it, but the orientation of the rectangular spring/washer isn't obvious (it seems just slightly curved, which is why I think it might be intended as a spring).
I put it back together, but it was difficult, partly because of thread damage from when it popped loose. And it was no better a fit than before. So I ran a 5mm tap through the cylinder to clear the threads, and replaced the bolt with a longer 5mm threaded rod and nut, so I can adjust at the other end.
So, my question is: what order should all these parts go in (maybe post a close-up picture so anyone with this problem can see how to fix it)? And, how can I get a fresh bolt, preferably about 5mm longer so it can have more than one thread engaged?
Is this a good question?