Zinc External Toothed Lock Washers Size 6 Pack With Serrated Outer Edge For Max Grip And Holding Power, Heavy Duty Hardware Fasteners, Durable Metal Washers

External Toothed Lock Washers - Size 6 Pack, Serrated Edge
✔️ Zinc-plated, serrated edge for strong grip and vibration resistance

These external toothed lock washers feature serrations along the outer diameter to bite into the mating surface for a stronger hold. They resist loosening from vibration and corrosion, making them ideal for use with large-head screws such as round, pan, binding, or washer-head screws across machinery, automotive, and general hardware applications. Pack size: 6 washers; Origin: Taiwan, Province of China.

✅ Material: zinc-plated steel
✅ Edge: serrated outer edge for grip
✅ Pack size: 6 washers per pack
✅ Origin: Taiwan, Province of China
✅ Recommended screws: large-head types like round, pan, binding, washer-head

💡 What is an external tooth lock washer used for in mechanical assemblies?

Lock washers with serrated outer edges are handy for keeping fasteners tight in vibrating equipment.

- Improves surface bite for retention - Works with large-head screws like round, pan, binding, or washer-head - Helps resist loosening from vibration and corrosion