300Pcs Copper Flat Washers Sealing Washers Kit In 12 Sizes, Metric Crush Washers Set For M5 M6 M8 M10 M12 M14 M16 M20, Durable Copper Gaskets With Corrosion Resistance, Pro Diy Auto Repair And General Hardware Supply

Copper Sealing Washers Kit in 12 Sizes, 300pc Set
✔️ 12 sizes, 300 pcs copper washers; M5-M20, corrosion resistant

This copper washer kit provides a broad range of sealing washers for plumbing, automotive, and machinery, commonly used to seal joints, distribute load, and prevent leaks.

✅ M5 9x1 mm
✅ M6 10x1 mm
✅ M6 12x1 mm
✅ M8 12x1 mm
✅ M8 14x1 mm
✅ M10 14x1 mm
✅ M12 16x1 mm
✅ M12 18x1.5 mm
✅ M14 18x1 mm
✅ M16 20x1.5 mm
✅ M16 22x1.5 mm
✅ M20 26x1.5 mm
✅ Includes transparent storage box

💡 What factors influence sealing performance when selecting copper crush washers for threaded connections?

These washers seal by compression and must fit correctly to maintain a tight seal.

- material copper offers corrosion resistance, high conductivity, and ductility - thickness and inner diameter must match the fastener to create a proper seal - surface cleanliness and correct torque improve sealing reliability✝️