Amazon.com: Wide Mouth Canning Lids and Rings - 24 Pack - Canning Lid and Ring for Large Mouth Jar - Bulk Widemouth Lids for Small & Quart Size - Fits Ball, Kerr
Spring Washers 6 mm Pack of 50 A1 Stainless Steel Spring Washers Shape B DIN 127 1.4310 Locking Rings Smooth : Amazon.de: Business, Industry & Science
Spiral spring washers spring ring DIN 127 stainless steel A2 V2A (M2) x1 : Amazon.de: DIY & Tools
Spring Washers 6 mm Pack of 50 A1 Stainless Steel Spring Washers Shape B DIN 127 1.4310 Locking Rings Smooth : Amazon.de: Business, Industry & Science