When you heard the words flat washer, what comes into your mind? Do you think of soap and water? Do you think of a washing machine? I am just kidding! Of course, a washer is the flat disk with a hole at the middle that can be used as a locking device. Well, you can also of course call your washing machine as a washer. And yes, if you look inside your washing machine, you'll see a lot of washers. Well, I just thought about it when I saw a box of washers in one of the shows in TV. I wonder what they will do with it? Maybe they will sell it or something.