13mm Inner Diameter Copper Flat Washers 20 Pack For Automotive Engine Sump Plug Sealing Gaskets Rings High Heat Resistant Durable Copper Seals For Leak Proof Car Maintenance

Copper Flat Washers for Sump Plugs 13x17x1mm, 20-Pack for Leaks
✔️ ID 13mm, OD 17mm, T 1mm; copper, high heat resistant

These copper flat washers are designed to seal sump plug nuts against leaks in automotive engines and other equipment. They perform well in high-temperature environments and resist abrasion compared to steel or rubber washers.

✅ Material: Copper
✅ Size: 13x17x1mm (ID×OD×T)
✅ Pack: 20 pieces
✅ Application: Sump plugs, water, fuel and hydraulic fittings
✅ Heat resistance: High for engine use

💡 What is a copper flat washer used for in automotive sealing?

Copper washers are handy for leak-proof sealing in engine and machine assemblies. They handle heat well and conform to mating surfaces for a tight seal.

• Leak-proof sealing for sump plugs and automotive fittings
• High heat resistance and corrosion resistance for long service life
• Size compatibility with standard automotive threads
• Best used with copper or compatible metal seals to prevent leaks