10pcs M6 M8 M10 M12 M14 M15 M16 M18 M19 M20 thickness 2mm Solid Copper Washer Shim Flat Ring Gasket Rings Seal Plain Washers

Material：Copper Thickness(mm)：2MM isCustomized：Yes Model Number：M3 to M20 DIY Supplies：Metalworking Origin：Mainland China Certification：CE

Material: Copper Thickness(mm): 2MM isCustomized: Yes Model Number: M3 to M20 DIY Supplies: Metalworking Origin: Mainland China Certification: CE