570 Pcs External Tooth Lock Washers Set With Multi Tooth Star Locking Washers In 304 Stainless Steel Metric Size Kit M Two Point Five M3 M4 M5 M6 M8 M10 M12 Heavy Duty Vibration Resistant Tough As Nails Industrial Gear

304 Stainless External Tooth Star Washers Kit, M2.5-M12
✔️ 570 pcs total, 8 metric sizes, organized in labeled box

These external tooth star-shaped locking washers are made from 304 stainless steel, offering strong corrosion resistance and high strength. The serrated, star-shaped design locks fasteners against loosening in high-vibration environments, making them ideal for machinery, appliances, automotive components, and other equipment.

✅ 304 stainless steel material for corrosion and rust resistance
✅ 8 metric sizes: M2.5, M3, M4, M5, M6, M8, M10, M12 (130/130/110/70/50/30/30/20 pcs)
✅ External tooth star design prevents washer rotation and fastener loosening
✅ Serrated outer edges grip surfaces to lock bolts securely
✅ Transparent storage box with size labels for quick access
✅ Suitable for electrical appliances, automotive, ships, valves, machinery, doors, windows

💡 What is a star locking washer used for in fastener assemblies?

• Handy for securing fasteners in machinery, automotive, and consumer electronics
• Restricts rotation of fasteners under dynamic loads
• Best used with matching screw or bolt size for maximum grip