M4 x 20 x 1.5mm Penny Washers - A2 Stainless Steel Metric Penny Washers, also known as Repair Washers, offer a large outside diameter which helps protect the fastened surface from damage by distributing the tightened force over a larger surface area. They can also be used as spacers due to them being flat on both sides. These Penny Washers are made from A2 Stainless Steel which provides corrosion and oxidation resistance. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M4 x 20 x 1.5mm Penny Washers - A2 Stainless Steel