11mm Inner Dia Copper Flat Washers Car Engine Sealing Gaskets Rings 30pcs - 0.43''x0.71''x0.04''(ID*OD*T)
$11.69
Material:Copper,durable and sturdy. Function:Seal the sump plug nut to the sump tightly. Have a tighter seal and high heat resistance than steel and rubber washers.