Steel Flat Washer, Zinc Plated Finish, DIN 125, Metric, M8 Screw Size, 8.4 mm ID, 16 mm OD, 1.6 mm Thick (Pack of 100): Amazon.com: Industrial & Scientific
Small Parts Brass Flat Washer, Plain Finish, DIN 125, Metric, M4 Screw Size, 4.3 mm ID, 9 mm OD, 0.8 mm Thick (Pack of 100): Amazon.com: Industrial & Scientific