Ten Pack Five Eighth External Tooth Lock Washers Zinc Plated Carbon Steel Multi Tooth Star Washers Locking Fasteners Silver Tone For Tough Vibration Control And Anti Loosening Inner Diameter 0.63 Inch Outer Diameter 1.06 Inch

Premium 5/8 in external tooth washers, 10-pack set
✔️ Ten pack; 0.63 in ID; 1.06 in OD; 0.05 in thick; zinc-plated

External tooth lock washers are zinc-plated carbon steel fasteners that bite into the mating surface, delivering spring-like friction for vibration resistance and anti-loosening performance across appliances, automotive, and industrial gear.

✅ Inner diameter 16 mm (0.63 in)
✅ Outer diameter 26.8 mm (1.06 in)
✅ Thickness 1.2 mm (0.05 in)
✅ Material: zinc-plated carbon steel
✅ Finish: silver tone
✅ Pack: 10 pcs

💡 What is a lock washer used for in mechanical assemblies?

Lock washers are handy for keeping fasteners tight in vibration-prone setups.

- Increases friction between fastener and base
- Helps prevent loosening under dynamic loads
- Useful in DIY projects, automotive, and industrial equipment