I agree with others, what you must have are pop rivets. Go to UTube and put in Pop Rivets and you'll find several videos on how to use them. Here's one.
Pop Rivet ClickyInstalling rivets isn't hard, but it might be tricky to get them spaced correctly so your bra isn't too tight or loose. If it is, you'll have to drill out the rivets (there are Utube videos on that also) and install them again. The only problem with that is it's going to leave a lot of holes in the front of your MH. If you have doubts, take it to a tent & tarp awning place, a boat canvas place or a MH shop to have it done.
Bill