3000pcs) DIN 9021 M6 Washers (6.4mm ID) OD ~ 3 x Screw Dia A2 Stainless Steel Ships Free in USA by Aspen Fasteners: Amazon.com: Industrial & Scientific
1400 pcs) M6, DIN 9021 / ISO 7093, Metric, Fender Washers, Steel, Zinc Plated: Amazon.com: Industrial & Scientific