No. 4 External Tooth Lock Washers

Features:

• Durable zinc‑plated grade 2 steel construction Combines dependable strength with corrosion resistance for long‑lasting performance in general applications.
• External tooth locking design Teeth grip into the mating surface to help prevent loosening from vibration or movement.
• Improves fastener reliability Maintains tension and positioning of nuts and bolts in dynamic or load‑bearing assemblies.
• Effective without added bulk Low‑profile washer delivers strong locking action while fitting easily into tight spaces.
• Wide range of practical uses Commonly used in automotive, machinery, electrical, and general hardware installations.