External Tooth Lock Washers Set 1000 Pcs Serrated Shakeproof Star Gaskets M4 Nickel Plating Black Zinc Hardened Steel For Vibration Resistant Fastening And Rigid Core Grip

External Tooth Lock Washers M4 Set, 1000 Pcs, Hardened Steel
✔️ Hardened steel core, precise inner diameter, nickel/black zinc finish

These external tooth lock washers provide a strong, reusable grip for fastening in vibration-heavy machinery, automotive, and industrial equipment. They are sized to fit standard M4 shafts and similar diameters.

✅ Pack size: 1000 pcs
✅ Finish: Nickel plating over black zinc
✅ Material: Hardened steel with external teeth
✅ Application: M4 shaft compatibility for vibration-resistant fastening and rigid grip

💡 What is an external tooth lock washer used for in vibration-prone fastenings?

External tooth lock washers bite into the shaft to create a positive lock that resists loosening from vibration. The hardened steel core preserves tooth shape through cycles, offering a reusable, reliable grip.

- Strong bite into shaft surfaces for reliable hold
- Hardened steel core maintains tooth geometry across cycles
- Consistent inner diameter provides stable fit on standard shafts
- Reusable design lets you remove and reinstall without losing grip✝️