M4 Rectangular Section Spring Washers (DIN 127B) - A4 Stainless Steel Rectangular Section Spring Washers provide ductile spacing washers with anti-vibration properties. The wide rectangular section of these washers enables them to be used in heavy duty, helping to resist any loosening. These Rectangular Section Spring 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. M4 Rectangular Section Spring Washers (DIN 127B) - A4 Stainless Steel