ZORO SELECT M37080.200.0001 Split Lock Washer, For Screw Size M20 Spring Steel,
Split Lock Washer, Curved, Spring Steel DIN267-26, Finish Zinc Plated, Fits Bolt Sizes M20, M20, Inside Dia. 20.2mm, Outside Dia. 33.6mm, Thickness 3.20mm, Color Gray, General Purpose, Meets/Exceeds DIN 128 A, Package Quantity 50