10/50pcs M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 Solid Copper Washer Shim Flat Ring Gasket Rings Seal Plain Spacer Washers FastenerHome Improvement > Hardware2,11 USD (≈ 1,89 €)2,17 USDDisponibileSold by AliExpress WWVai al negozio