[6000 BULK] Lock Washers External Tooth Steel Zinc 3/8

Secure and stabilize fasteners with our Lock Washers External Tooth Steel Zinc 3/8—a robust solution designed to prevent loosening in vibration-heavy assemblies. Crafted from durable steel with a protective zinc finish, these washers deliver strength, corrosion resistance, and reliable performance across a range of applications.

Key features

• External tooth design bites into the mating surface to resist rotation and loosening under vibration.
• Material: high-strength steel with a zinc finish for corrosion resistance.
• Size: 3/8" to fit common fasteners and hardware.
• Easy installation—works with standard bolts and washers to deliver reliable clamping force.
• Versatile applications suitable for automotive, machinery, electrical, and general hardware assemblies.

Applications and benefits

By distributing load and preventing rotational movement, external tooth lock washers help maintain bolt tension, reduce wear, and extend service life in equipment subject to shock or vibration. Their zinc finish also provides a protective layer against rust, making them suitable for indoor environments and light outdoor use when paired with appropriate sealing and protection.

Specifications: Lock Washers External Tooth, Steel, Zinc Finish, 3/8" size. Ideal for fastener systems where vibration resistance and secure torque retention are essential.