Our flat washers are made from stainless steel and were designed to be the same size as the screw they are to be paired with. This means that you can confidently select M8 washers if you need to pair it with an M8 screw. No more second-guessing about whether the washer will fit! When it comes to finding nuts, bolts, screws, washers, and more for your project, there is no one you can trust quite like Monster Bolts. Be sure to contact us today to learn more about our products and let us know what we can do to help better your experience.