Mine decided it wanted to be a drag chute today . About 6 miles into my ride home, I pulled over to shed a layer and that is when I discovered that my rear rack was now in a vertical state (with my heavy non-bike specific jacket strapped to it ). Both of the mounting screws that attaches the rack at the upper part of the seat tube were MIA. Luckily, I finished the ride without any further mishap.
The rack is now in "time out" in the garage, while my rear fender gets to see the light of day again.
I had a rack that did that once. It was an old Eclipse rack that had two small screws that could be loosened to adjust the length of the rack. While on a tour with the rack stacked full of crap above my panniers, both screws came loose. One of my riding partners saw the mountain of stuff falling and bolted past me. At first I didn't know what had happened, only that I suddenly had a bit more drag. Mine acted more like an anchor than a drag chute. Thankfully, nothing was lost. I just tightened up the screws, repacked, had a good laugh and set off again.
Also, +1 to the thread lock compound. Since I started using it, I haven't had one shake loose in decades.
For me, yes. Fast as compared to some around here in general, no.
I don't know if those bolts worked themselves loose from the way I manhandle the bike during the loading/unloading from the SUV, or if some one (who surely has a very special place in Hades reserved) removed them.
I just got back from the store to pick up some more bolts and nylon threaded heads to lock my rack and fenders to my bike. Earlier today I had a surprise visit from the bottom of the fender on my leg. One bolt came out and the other one was just about to.
I have several of those locking washers, that look like they are split in the middle, but I would rather be safe than sorry.