2007 Dyna Street Bob, 13890 miles. Last week I set out to do the front mount washer shim and I noticed upon inspection my front isolator mount looked rather stretched and rough looking. So I ordered a new one from Zanottis'. Today I got it installed in place with the bolts in it, went to screw on the nuts and they started fine, but then noticed just as the bolts were coming out the other side of the nuts they started to drag some (both of them). So I stopped and inspected the bolts, they both looked fine. I inspected the nuts, they both look like someone hit the outside thread with a pin punch? I know I could get them on ok since they came off with no apparent damage to the bolts, but I am heading to the hardware store now to buy a couple of new ones after I post this. What's bugging me, is this some sort of factory thing they do to keep them from coming all the way loose or something ? Anybody else notice this installing front mounts on Dyna? I am talking about the bolts and nuts that mount the top of the isolator mount to the engine brace, not the two bottom frame mount bolts.