100-400PCS Copper Washer Gasket Nut And Bolt Set Flat Ring Seal Assortment Kit With Box M4/M5/M6/M8/M10/M12/M14 For Sump Plugs

Material：Copper High-concerned chemical：None Thickness(mm)：1mm isCustomized：Yes Model Number：M4/M5/M6/M8/M10/M12/M14 DIY Supplies：Metalworking Origin：Mainland China Certification：NONE

Material: Copper High-concerned chemical: None Thickness(mm): 1mm isCustomized: Yes Model Number: M4/M5/M6/M8/M10/M12/M14 DIY Supplies: Metalworking Origin: Mainland China Certification: NONE