my week-old rear rack shook itself apart on the ride in to work today. Luckily the bolts that remained held it in place enough for me to ride it to the LBS that installed it and they had it back together in 5 minutes. They said if it happens again or I'm not comfortable, they'll redo it with some loctite but they didn't want to use it if they don't have to in case I want to remove it or run fenders at some point(only one set of eyelets).