Be careful getting them from a hardware store, not many have the exact same size. Most are smaller nut (14mm) and overall surface of the washer is small in comparison to Yamanuts. Also wouldnt hurt to have a dot of Loctite on the studs, I speak from experience on this one. I ovaled out the holes on my paddles last weekend when I lost two lugnuts. And FYI, there is no Suzuki dealer between North Bend and Eugene, so be careful how far north you go.