[9000 BULK] Lock Washers External Tooth Steel Zinc Yellow #5/16

Experience secure, vibration-resistant fastening with Lock Washers External Tooth. Crafted from durable steel and finished in bright zinc yellow, these washers provide reliable locking action for assemblies that experience movement or shock.

Designed for #5/16 hardware, the external tooth geometry bites into surfaces to minimize loosening and maintain clamped load through dynamic conditions. The zinc yellow coating adds corrosion resistance for longer service life in challenging environments.

• External tooth design: teeth grip into the mating surface to prevent rotation and loosening under vibration.
• Material: high-strength steel for durability and long-term performance.
• Finish: zinc yellow coating for corrosion resistance and visibility.
• Size: fits standard #5/16 fasteners.
• Applications: ideal for automotive, machinery, equipment assemblies, and general fastening needs where vibration is a concern.

To use, place the washer under the head of the fastener or under the nut and tighten to the specified torque. The external teeth engage the washer surface and the joint to reduce loosening over time.

Specifications

• Type: External Tooth Lock Washer
• Material: Steel
• Finish: Zinc Yellow
• Size: #5/16