M10 Form C Flat Washers (BS 4320C) - A4 Stainless Steel Form C Flat Washers, maintain the standard thickness of a Form A Flat Washer but with a larger outside diameter. Flat Washers are used to increase the surface area of the fastener and therefore distributing the force more evenly across the fastened surface. They can also be used as spacers due to them being flat on both sides. These Flat Washers are made from A4 Marine Grade Stainless Steel which provides corrosion and oxidation resistance as well as increased resistance in harsh chemical and outdoor environments. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. M10 Form C Flat Washers (BS 4320C) - A4 Stainless Steel