Safety washers for shafts DIN 6799, diameter 2.3 x 1 : Amazon.de: Business, Industry & Science
400pcs) DIN 6799 M12 Retaining Washers for Shafts Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP6799212: Amazon.com: Industrial & Scientific
1.2mm x 1.01mm E Clips (DIN 6799) - Stainless Steel: Accu.co.uk: Hardware