Steel Flat Washer, Zinc Plated Finish, DIN 125, Metric, M6 Screw Size, 6.4 mm ID, 12 mm OD, 1.6 mm Thick (Pack of 100): Amazon.com: Industrial & Scientific
M12 Stainless Steel Washer A2 Large (Pack of 10) Flat Width Round Stainless Steel for Screws - Stainless Steel A2 Certified Standard ISO 7093 DIN 9021 M12 (13mm x 37mm) : Amazon.de: DIY & Tools